title: Pseudo Rotation Curve connecting the Galaxy, Dark Halo, and Local Group

abstract:
  We construct a Galacto-Local Group rotation curve, combining the Galactic
rotation curve with a diagram, where galacto-centric radial velocities of outer
globular clusters and member galaxies of the Local Group are plotted against
their galacto-centric distances. The high-velocity ends of this pseudo rotation
curve within a radius R ~ 150 kpc are well traced by a rotation curve
calculated for the NFW (Navaro, Frenk, White) and Burkert dark halo models. The
NFW model indicates that the Galaxy's mass within 385 kpc, half distance to
M31, is ~ 4 x 10^{11}M_{sun}. High-velocity ends of the pseudo rotation curve
for the entire Local Group up to 1.5 Mpc indicate isothermal nature with a
terminal velocity of ~ 200 km/s. In order for the Local Group to be
gravitationally bound, an order of magnitude larger mass than those of the
Galaxy and M31 is required. This fact indicates that the Local Group contains
dark matter of mass ~ 5 x 10^{12}M_{sun} filling the space between the Galaxy
and M31. The mass density of the Galactic dark halo becomes equal to that of
the Local Group's dark matter at R ~ 100 kpc, beyond which the intracluster
dark matter dominates. If we define the Galaxy's radius at this distance, the
enclosed Galactic mass is ~ 3 x 10^{11}M_{sun}. We comment on the barionic
matter fraction of galaxies in the Local Group.


title: Mergers and Disk Survival in LCDM

abstract:
  Disk galaxies are common in our universe and this is a source of concern for
hierarchical formation models like LCDM. Here we investigate this issue as
motivated by raw merger statistics derived for galaxy-size dark matter halos
from LCDM simulations. Our analysis shows that a majority (~70%) of galaxy
halos with M = 10^12 M_sun at z=0 should have accreted at least one object with
mass m > 10^11 M_sun ~ 3 M_disk over the last 10 Gyr. Mergers involving larger
objects should have been rare, and this pinpoints m/M = 0.1 mass-ratio mergers
as the most worrying ones for the survival of thin galactic disks. Motivated by
these results, we use use high-resolution, dissipationless N-body simulations
to study the response of stellar Milky-Way type disks to these common mergers
and show that thin disks do not survive the bombardment. The remnant galaxies
are roughly three times as thick and twice as kinematically hot as the observed
thin disk of the Milky Way. Finally, we evaluate the suggestion that disks may
be preserved if the mergers involve gas-rich progenitors. Using empirical
measures to assign stellar masses and gas masses to dark matter halos as a
function of redshift, we show that the vast majority of large mergers
experienced by 10^12 M_sun halos should be gas-rich (f_gas > 0.5), suggesting
that this is a potentially viable solution to the disk formation conundrum.
Moreover, gas-rich mergers should become increasingly rare in more massive
halos > 10^12.5 M_sun, and this suggest that merger gas fractions may play an
important role in establishing morphological trends with galaxy luminosity.


title: Dynamics of Fluid Vesicles in Flow through Structured Microchannels

abstract:
  The dynamics of fluid vesicles is studied under flow in microchannels, in
which the width varies periodically along the channel. Three types of flow
instabilities of prolate vesicles are found. For small quasi-spherical vesicles
-- compared to the average channel width -- perturbation theory predicts a
transition from a state with orientational oscillations of a fixed prolate
shape to a state with shape oscillations of symmetrical ellipsoidal or
bullet-like shapes with increasing flow velocity. Experimentally, such
orientational oscillations are observed during the slow migration of a vesicle
towards the centerline of the channel. For larger vesicles, mesoscale
hydrodynamics simulations and experiments show similar symmetric shape
oscillation at reduced volumes $V^* \gtrsim 0.9$. However, for non-spherical
vesicles with $V^* \lesssim 0.9$, shapes are found with two symmetric or a
single asymmetric tail.


title: A QCD motivated model for soft processes

abstract:
  In this talk we give a brief description of a QCD motivated model for both
hard and soft interactions at high energies. In this model the long distance
behaviour of the scattering amplitude is determined by the dipole scattering
amplitude in the saturation domain. All phenomenological parameters for
dipole-proton interaction were fitted from the deep inelastic scattering data
and the soft processes are described with only one new parameter, related to
the wave function of hadron. It turns out that we do not need to introduce the
so called soft Pomeron that has been used in high energy phenomenology for four
decades.


title:
Ag-Cu alloy surfaces in an oxidizing environment: a first-principles
  study

abstract:
  Recent experiments on model catalysts have shown that Ag-Cu alloys have
improved selectivity with respect to pure silver for ethylene epoxidation. In
this paper we review our first-principles investigations on the (111) surface
of this alloy and present new findings on other low index surfaces. We find
that, for every surface orientation, the presence of oxygen leads to copper
segregation to the surface. Considering the alloy to be in equilibrium with an
oxygen atmosphere and accounting for the effect of temperature and pressure, we
compute the surface free energy and study the stability of several surface
structures. Investigating the dependence of the surface free energy on the
surface composition, we construct the phase diagram of the alloy for every
surface orientation. Around the temperature, pressure and composition of
interest for practical applications, we find that a limited number of
structures can be present, including a thin layer of copper oxide on top of the
silver surface and copper-free structures. Different surface orientations show
a very similar behavior and in particular a single layer with CuO
stoichiometry, significantly distorted when compared to a layer of bulk CuO,
has a wide range of stability for all orientations. Our results are consistent
with, and help explain, recent experimental measurements.


title: Beyond the Standard Model Physics Searches at the Tevatron

abstract:
  The recent results on a number of searches performed at Tevatron for new
phenomena beyond Standard Model are presented. The topics include the
experimental tests of SUSY with mSUGRA and GMSB breaking scenarios. The latest
analyses on large extra dimensions, new massive bosons are covered as well. The
results are based on experimental data samples collected at the Tevatron with
CDF and D0 detectors and comprising a total integrated luminosity up to ~2.7
fb^-1 .


title: Surviving the crash: assessing the aftermath of cosmic bubble collisions

abstract:
  This paper is the third in a series investigating the possibility that if we
reside in an inflationary "bubble universe", we might observe the effects of
collisions with other such bubbles. Here, we study the interior structure of a
bubble collision spacetime, focusing on the issue of where observers can
reside. Numerical simulations indicate that if the inter-bubble domain wall
accelerates away, infinite spacelike surfaces of homogeneity develop to the
future of the collision; this strongly suggests that observers can have
collisions to their past, and previous results then imply that this is very
likely. However, for observers at nearly all locations, the restoration of
homogeneity relegates any observable effects to a vanishingly small region on
the sky. We find that bubble collisions may also play an important role in
defining measures in inflation: a potentially infinite relative volume factor
arises between two bubble types depending on the sign of the acceleration of
the domain wall between them; this may in turn correlate with observables such
as the scale or type of inflation.


title: Flapping motion and force generation in a viscoelastic fluid

abstract:
  In a variety of biological situations, swimming cells have to move through
complex fluids. Similarly, mucociliary clearance involves the transport of
polymeric fluids by beating cilia. Here, we consider the extent to which
complex fluids could be exploited for force generation on small scales. We
consider a prototypical reciprocal motion (i.e. identical under time-reversal
symmetry): The periodic flapping of a tethered semi-infinite plane. In the
Newtonian limit, such motion cannot be used for force generation according to
Purcell's scallop theorem. In a polymeric fluid (Oldroyd-B, and its
generalization), we show that this is not the case and calculate explicitly the
forces on the flapper for small-amplitude sinusoidal motion. Three setups are
considered: a flapper near a wall, a flapper in a wedge, and a two-dimensional
scallop-like flapper. In all cases, we show that at quadratic order in the
oscillation amplitude, the tethered flapping motion induces net forces but no
average flow. Our results demonstrate therefore that the scallop theorem is not
valid in polymeric fluids. The reciprocal component of the movement of
biological appendages such as cilia can thus generate nontrivial forces in
polymeric fluid such as mucus, and normal-stress differences can be exploited
as a pure viscoelastic force generation and propulsion method.


title:
55 Cancri: A Laboratory for Testing Numerous Conjectures about Planet
  Formation

abstract:
  Five planets are presently believed to orbit the primary star of 55 Cnc, but
there exists a large 5 AU gap in their distribution between the two outermost
planets. This gap has attracted considerable interest because it may contain
one or more lower--mass planets whose existence is not contradicted by
long-term orbit stability analyses, in fact it is expected according to the
"packed planetary systems" hypothesis and an empirical Titius--Bode relation
recently proposed for 55 Cnc. Furthermore, the second largest planet is just
the second farthest and it orbits very close to the star. Its orbit, the most
circular of all, appears to be nearly but not quite commensurable with the
orbit of the third planet, casting doubt that any migration or resonant capture
of the inner planets has ever occurred and lending support to the idea of
"in--situ" giant planet formation by the process of core accretion. All of the
above ideas will be tested in the coming years in this natural laboratory as
more observations will become available. This opportunity presents itself in
conjunction with a physical model that relates the orbits of the observed
planets to the structure of the original protoplanetary disk that harbored
their formation at the early stages of protostellar collapse. Using only the 5
observed planets of 55 Cnc, this model predicts that the surface density
profile of its protoplanetary disk varied with distance $R$ precisely as
$\Sigma (R)\propto R^{-3/2}$, as was also found for the minimum--mass solar
nebula. Despite this similarity, the disk of 55 Cnc was smaller, heavier, and
less rotationally supported than the solar nebula, so this system represents a
different mode of multi--planet formation compared to our own solar system.


title: Chiral SU(3) dynamics and the quasibound K^-pp cluster

abstract:
  The prototype of a Kbar nuclear cluster, K^-pp, has been investigated using
effective KbarN potentials based on chiral SU(3) dynamics. Variational
calculation shows a bound state solution with shallow binding energy
B(K^-pp)=20 \pm 3 MeV and broad mesonic decay width \Gamma(KbarNN -> \pi Y
N)=40 - 70 MeV. The KbarN(I=0) pair in the K^-pp system exhibits a similar
structure as the \Lambda(1405). We have also estimated the dispersive
correction, p-wave KbarN interaction, and two-nucleon absorption width.


title: Nonlinear Dynamics and Chaos in Two Coupled Nanomechanical Resonators

abstract:
  Two elastically coupled nanomechanical resonators driven independently near
their resonance frequencies show intricate nonlinear dynamics. The dynamics
provide a scheme for realizing a nanomechanical system with tunable frequency
and nonlinear properties. For large vibration amplitudes the system develops
spontaneous oscillations of amplitude modulation that also show period doubling
transitions and chaos. The complex nonlinear dynamics are quantitatively
predicted by a simple theoretical model.


title: Leptogenesis with Composite Neutrinos

abstract:
  Models with composite singlet neutrinos can give small Majorana or Dirac
masses to the active neutrinos. The mechanism is based on the fact that
conserved chiral symmetries give massless neutrinos at the renormalizable
level. Thus, they acquire very small masses due to non-renormalizable terms. We
investigate such models in two aspects. First, we find UV completions for them
and then we investigate the possibility of giving leptogenesis. We find that
these models offer new possibilities for leptogenesis. Models with Majorana
masses can exhibit standard leptogenesis. Models with Dirac masses can provide
a realization of Dirac type leptogenesis with mass scale that can be as low as
10 TeV.


title: Beta decay rates for r-process for nuclei near neutron number N=82

abstract:
  For r-process nucleosynthesis the beta decay rates of very neutron-rich
nuclei are important ingredients. We consider the region around the neutron
number N=82 and calculate the half-lives and rates for a number of nuclei.
Forms for beta strength functions based on spectral distribution methods are
used. The calculated half-lives are first compared to the observed values and
then predictions are made for very neutron-rich nuclei close to drip line for
which no experimental values are available.


title: Hidden and open charm at Belle (and elsewhere)

abstract:
  There have been great advances in charm physics at the B-factories in recent
years, including the observation of D0-D0bar mixing and the discovery of many
new hidden-charm states, some of them presumably exotic in structure. This talk
reviews some of the recent Belle results, with emphasis on the hidden-charm
sector. Evidence for two new charged states is presented for the first time at
this conference.


title: Solitons and vortices in an evolving Bose-Einstein condensate

abstract:
  Spatiotemporal evolution of a confined Bose-Einstein condensate is studied by
numerically integrating the time-dependent Gross-Pitaevskii equation.
Self-interference between the successively expanding and reflecting nonlinear
matter waves results in spiral atomic density profile, which subsequently
degenerates into an embedding structure: The inner part preserves memory of the
initial states while the outer part forms a sequence of necklacelike rings. The
phase plot reveals a series of discrete concentric belts. The large gradients
between adjacent belts indicate that the ring density notches are dark
solitons. In the dynamical process, a scenario of vortex-antivortex pairs are
spontaneously created and annihilated, whereas the total vorticity keeps
invariant.


title:
Dynamic versus Static Structure Functions and Novel Diffractive Effects
  in QCD

abstract:
  Initial- and final-state rescattering, neglected in the parton model, have a
profound effect in QCD hard-scattering reactions, predicting single-spin
asymmetries, diffractive deep inelastic scattering, diffractive hard hadronic
reactions, the breakdown of the Lam Tung relation in Drell-Yan reactions, and
nuclear shadowing and non-universal antishadowing--leading-twist physics not
incorporated in the light-front wavefunctions of the target computed in
isolation. I also discuss the use of diffraction to materialize the Fock states
of a hadronic projectile and test QCD color transparency, and anomalous heavy
quark effects. The presence of direct higher-twist processes where a proton is
produced in the hard subprocess can explain the large proton-to-pion ratio seen
in high centrality heavy ion collisions. I emphasize the importance of
distinguishing between static observables such as the probability distributions
computed from the square of the light-front wavefunctions versus dynamical
observables which include the effects of rescattering.


title:
Automorphisms of hyperelliptic modular curves $X_0(N)$ in positive
  characteristic

abstract:
  We study the automorphism groups of the reduction $X_0(N) \times
  \bar{\mathbb{F}}_p$ of a modular curve $X_0(N)$ over primes
  $ p\nmid N$.


title:
Dark Energy and Matter in 4 Dimensions From an Empty Kaluza-Klein
  Spacetime

abstract:
  We consider the third order Lovelock equations without the cosmological
constant term in an empty $n(\geq 8)$-dimensional Kaluza-Klein spacetime
$\mathcal{M}^{4}\times \mathcal{K}^{n-4}$, where $\mathcal{K}^{n-4}$ is a
constant curvature space. We show that the emptiness of the higher-dimensional
spacetime imposes a constraint on the metric function(s) of 4-dimensional
spacetime $\mathcal{M}^{4}$. We consider the effects of this constraint
equation in the context of black hole physics, and find a black hole solution
in 4 dimensions in the absence of matter field and the cosmological constant
(dark energy). This solution has the same form as the 4-dimensional solution
introduced in [H. Maeda and N. Dadhich, Phys. Rev. D 74 (2006) 021501(R)] for
Gauss-Bonnet gravity in the presence of cosmological constant, and therefore
the metric of $\mathcal{M}^{4}$ which satisfies the vacuum Lovelock equations
in higher-dimensional Kaluza-Klein spacetime is unique. This black hole
solution shows that the curvature of an empty higher-dimensional Kaluza-Klein
spacetime creates dark energy and matter with non-traceless energy-momentum
tensor in 4 dimensions.


title: A quantum sensor for atom-surface interactions below 10 $\mu$m

abstract:
  We report about the realization of a quantum device for force sensing at
micrometric scale. We trap an ultracold $^{88}$Sr atomic cloud with a 1-D
optical lattice, then we place the atomic sample close to a test surface using
the same optical lattice as an elevator. We demonstrate precise positioning of
the sample at the $\mu$m scale. By observing the Bloch oscillations of atoms
into the 1-D optical standing wave, we are able to measure the total force on
the atoms along the lattice axis, with a spatial resolution of few microns. We
also demonstrate a technique for transverse displacement of the atoms, allowing
to perform measurements near either transparent or reflective test surfaces. In
order to reduce the minimum distance from the surface, we compress the
longitudinal size of the atomic sample by means of an optical tweezer. Such
system is suited for studies of atom-surface interaction at short distance,
such as measurement of Casimir force and search for possible non-Newtonian
gravity effects.


title: Entanglement renormalization in two spatial dimensions

abstract:
  We propose and test a scheme for entanglement renormalization capable of
addressing large two-dimensional quantum lattice systems. In a translationally
invariant system, the cost of simulations grows only as the logarithm of the
lattice size; at a quantum critical point, the simulation cost becomes
independent of the lattice size and infinite systems can be analysed. We
demonstrate the performance of the scheme by investigating the low energy
properties of the 2D quantum Ising model on a square lattice of linear size
L={6,9,18,54,inf} with periodic boundary conditions. We compute the ground
state and evaluate local observables and two-point correlators. We also produce
accurate estimates of the critical magnetic field and critical exponent beta. A
calculation of the energy gap shows that it scales as 1/L at the critical
point.


title:
A signature for the Luttinger liquid phase in alternating Heisenberg
  spin-1/2 chains

abstract:
  We have studied the zero and low-temperature behavior of anisotropic
alternating antiferromagnetic-ferromagnetic Heisenberg spin-1/2 chains in a
transverse magnetic field. Using the analytical spinless fermion approach, the
thermodynamic behavior of the model has been studied. We have introduced a new
order parameter to distinguish the gapless Luttinger liquid phase from the
other gapped phases. The exact diagonalization Lanczos results are also used to
compare with the spinless fermion ones. We have found a double peak structure
in the specific heat curves for the region between the two quantum critical
points. Using the numerical full diagonalization results, the existence of the
double peak structure is confirmed.


title: Non-classical Role of Potential Energy in Adiabatic Quantum Annealing

abstract:
  Adiabatic quantum annealing is a paradigm of analog quantum computation,
where a given computational job is converted to the task of finding the global
minimum of some classical potential energy function and the search for the
global potential minimum is performed by employing external kinetic quantum
fluctuations and subsequent slow reduction (annealing) of them. In this method,
the entire potential energy landscape (PEL) may be accessed simultaneously
through a delocalized wave-function, in contrast to a classical search, where
the searcher has to visit different points in the landscape (i.e., individual
classical configurations) sequentially. Thus in such searches, the role of the
potential energy might be significantly different in the two cases. Here we
discuss this in the context of searching of a single isolated hole (potential
minimum) in a golf-course type gradient free PEL. We show, that the quantum
particle would be able to locate the hole faster if the hole is deeper, while
the classical particle of course would have no scope to exploit the depth of
the hole. We also discuss the effect of the underlying quantum phase transition
on the adiabatic dynamics.

categories: quant-ph cond-mat.stat-mech cs.CC physics.comp-ph


title: The Lyapunov Characteristic Exponents and their computation

abstract:
  We present a survey of the theory of the Lyapunov Characteristic Exponents
(LCEs) for dynamical systems, as well as of the numerical techniques developed
for the computation of the maximal, of few and of all of them. After some
historical notes on the first attempts for the numerical evaluation of LCEs, we
discuss in detail the multiplicative ergodic theorem of Oseledec \cite{O_68},
which provides the theoretical basis for the computation of the LCEs. Then, we
analyze the algorithm for the computation of the maximal LCE, whose value has
been extensively used as an indicator of chaos, and the algorithm of the
so--called `standard method', developed by Benettin et al. \cite{BGGS_80b}, for
the computation of many LCEs. We also consider different discrete and
continuous methods for computing the LCEs based on the QR or the singular value
decomposition techniques. Although, we are mainly interested in
finite--dimensional conservative systems, i. e. autonomous Hamiltonian systems
and symplectic maps, we also briefly refer to the evaluation of LCEs of
dissipative systems and time series. The relation of two chaos detection
techniques, namely the fast Lyapunov indicator (FLI) and the generalized
alignment index (GALI), to the computation of the LCEs is also discussed.

categories: nlin.CD astro-ph math-ph math.DS math.MP math.NA physics.comp-ph


title: Gram's Law Fails a Positive Proportion of the Time

abstract:
  This paper extends the work done by Titchmarsh on Gram's Law (an attempt to
locate the zeroes of the zeta-function on the critical line). Herewith it is
shown that a positive proportion of Gram intervals violate Gram's Law; and also
that a weaker notion of Gram's Law is valid over a positive proportion of
intervals.


title: Crumpling transition and flat phase of polymerized phantom membranes

abstract:
  Polymerized phantom membranes are revisited using a nonperturbative
renormalization group approach. This allows one to investigate both the
crumpling transition and the low-temperature, flat, phase in any internal
dimension D and embedding dimension d, and to determine the lower critical
dimension. The crumpling phase transition for physical membranes is found to be
of second order within our approximation. A weak first-order behavior, as
observed in recent Monte Carlo simulations, is however not excluded.


title: Growth of superconducting single-crystalline (Lu, Ca)Ba2Cu3O7-d whiskers

abstract:
  Single-crystalline (Lu, Ca)Ba2Cu3O7-d (Lu(Ca)123) whiskers have been
successfully grown using the Te-doping method. X-ray diffraction patterns of
Lu(Ca)123 whiskers showed sharp (0 0 l) peaks corresponding to REBa2Cu3O7-d
phase (RE = rare earth elements). Transport measurements showed that the
superconducting transition occurred at 83 K in the obtained whiskers.


title: The Bing-Borsuk and the Busemann Conjectures

abstract:
  We present two classical conjectures concerning the characterization of
manifolds: the Bing Borsuk Conjecture asserts that every $n$-dimensional
homogeneous ANR is a topological $n$-manifold, whereas the Busemann Conjecture
asserts that every $n$-dimensional $G$-space is a topological $n$-manifold. The
key object in both cases are so-called {\it generalized manifolds}, i.e. ENR
homology manifolds. We look at the history, from the early beginnings to the
present day. We also list several open problems and related conjectures.


title: Zeta Functions of Projective Toric Hypersurfaces over Finite Fields

abstract:
  I give a formula for the zeta function of a projective toric hypersurface
over a finite field and estimate its Newton polygon. As an application this
formula allows us to compute the exact number of rational points on the
families of Calabi-Yau manifolds in Mirror Symmetry.


title: The non-symmetric operad pre-Lie is free

abstract: We prove that the pre-Lie operad is a free non-symmetric operad.


title: Real GDP per capita in developed countries

abstract:
  Growth rate of real GDP per capita is represented as a sum of two components
-- a monotonically decreasing economic trend and fluctuations related to a
specific age population change. The economic trend is modeled by an inverse
function of real GDP per capita with a numerator potentially constant for the
largest developed economies. Statistical analysis of 19 selected OECD countries
for the period between 1950 and 2004 shows a very weak linear trend in the
annual GDP per capita increment for the largest economies: the USA, Japan,
France, Italy, and Spain. The UK, Australia, and Canada show a larger positive
linear trend. The fluctuations around the trend values are characterized by a
quasi-normal distribution with potentially Levy distribution for far tails.
Developing countries demonstrate the increment values far below the mean
increment for the most developed economies. This indicates an underperformance
in spite of large relative growth rates.


title: The anomalous Hall conductivity due to the vector spin chirality

abstract:
  We study theoretically the anomalous Hall effect due to the vector spin
chirality carried by the local spins in the $s$-$d$ model. We will show that
the vector spin chirality indeed induces local Hall effect in the presence of
the electron spin polarization, while the global Hall effect vanishes if
electron transport is homogeneous. This anomalous Hall effect can be
interpreted in terms of the rotational component of the spin current associated
with the vector chirality.


title: Higher-dimensional forcing

abstract:
  This is an overview about a method of constructing ccc forcings: Suppose
first that a continuous, commutative system of complete embeddings between
countable forcings indexed along $\omega_1$ is given. Then its direct limit
satisfies ccc by a well-known theorem on finite support iterations. However,
this limit has size at most $\omega_1$. To get larger forcings, we do not
consider linear systems but higher-dimensional systems which are indexed along
simplified morasses.


title:
Inflation as a function of labor force change rate: cointegration test
  for the USA

abstract:
  A linear and lagged relationship between inflation and labor force change
rate, p(t)= A1dLF(t-t1)/LF(t-t1)+A2 was found for developed economies. For the
USA, A1=4.0, A2=-0.03075, and t1=2 years. It provides a RMS forecasting error
(RMFSE) of 0.8% at a two-year horizon for the period between 1965 and 2002 (the
best among other inflation forecasting models). This relationship is tested for
cointegration. Both variables are integrated of order one according to the
presence of a unit root in the series and its absence in their first
differences. Two methods of cointegration testing are applied: the
Engle-Granger one based on the unit root test of the residuals including a
variety of specification tests and the Johansen cointegration rank test based
on the VAR representation. Both approaches demonstrate that the variables are
cointegrated and the long-run equilibrium relation revealed in previous study
holds. According to the Granger causality test, the labor force change is
proved to be a weakly exogenous variable - a natural result considering the
time lead and the existence of a cointegrating relation. VAR and VECM
representations do not provide any significant improvement in RMSFE. There are
numerous applications of the equation: from purely theoretical - a robust
fundamental relation between macroeconomic and population variables, to a
practical one - an accurate out-of-sample inflation forecasting at a two-year
horizon and a long-term prediction based on labor force projections. The
predictive power of the relationship is inversely proportional to the
uncertainty of labor force estimates. Therefore, future inflation research
programs should start from a significant improvement in the accuracy of labor
force estimations.


title: Heavy b' and t' Decay

abstract:
  Heavy $t' \to bW$ is currently being searched for at the Tevatron, but a
broader spectrum should be explored at the LHC. For $m_{b'} < m_{t'}$, we
discuss the two decay branches, $b' \to tW^*$ and $t^*W$, below the $tW$
threshold, and how they merge with $b' \to tW$ above threshold. We use a
convolution method with five body final state, and compare the production cross
section with PYTHIA. This can be extended for a $b'$ with mass heavier than
$t'$. A similar discussion is given for $t'$ decay, considering $t' \to
b^{(*)}W^{(*)}$ processes, besides the $t' \to bW$ considered by CDF.


title: Measurement of beauty production from dimuon events at HERA

abstract:
  Beauty production in events containing two muons in the final state has been
measured with the ZEUS detector at HERA using an integrated luminosity of 114
pb-1. A low transverse-momentum threshold for muon identification, in
combination with the large rapidity coverage of the ZEUS muon system, gives
access to almost the full phase space for beauty production. The total cross
section for beauty production in ep collisions at sqrt(s)= 318 GeV has been
measured to be sigma_tot(ep -> bbbar X) = 13.9 +- 1.5(stat.) +4.0 -4.3(syst.)
nb. Differential cross sections and a measurement of bbbar correlations are
also obtained, and compared to other beauty cross-section measurements, Monte
Carlo models and next-to-leading-order QCD predictions.


title:
Diffraction slopes for elastic proton-proton and proton-antiproton
  scattering

abstract:
  The diffraction slope parameter is investigated for elastic proton-proton and
proton-antiproton scattering based on the all available experimental data at
low momentum transfer values. Energy dependence of the elastic diffraction
slopes is approximated by various analytic functions. The expanded "standard"
logarithmic approximations allow to describe experimental slopes in all
available energy range reasonably. Various approximations differ from each
other both in the low energy and very high energy domains. Predictions for
diffraction slope parameter are obtained for elastic proton-proton scattering
at RHIC and LHC energies, for proton-antiproton elastic reaction in FAIR energy
domain for various approximation functions.


title:
Relationship between inflation, unemployment and labor force change rate
  in France: cointegration test

abstract:
  A linear and lagged relationship between inflation, unemployment and labor
force change rate, p(t)=A0UE(t-t0)+A1dLF(t-t1)/LF(t-t1)+ A2, where A0, A1, and
A2 are empirical country-specific coefficients, was found for developed
economies. The relationship obtained for France is characterized by A0=-1,
A1=4, A2=0.095, t0=4 years, and t1=4 years. For GDP deflator, it provides a RMS
forecasting error (RMFSE) of 1.0% at a four-year horizon for the period between
1971 and 2004. The relationship is tested for cointegration. All three
variables involved in the relationship are proved to be integrated of order
one. Two methods of cointegration testing are used. First is the Engle-Granger
approach based on the unit root test in the residuals of linear regression,
which also includes a number of specification tests. Second method is the
Johansen cointegration rank test based on a VAR representation, which is also
proved to be an adequate one via a set of appropriate tests. Both approaches
demonstrate that the variables are cointegrated and the long-run equilibrium
relation revealed in previous study holds together with statistical estimates
of goodness-of-fit and RMSFE. Relationships between inflation and labor force
and between unemployment and labor force are tested separately in appropriate
time intervals, where the Banque de France monetary policy introduced in 1995
does not disturb the long-term links. All the individual relationships are
cointegrated in corresponding intervals. The VAR and vector error correction
(VEC) models are estimated and provide just a marginal improvement in RMSFE at
the four-year horizon both for GDP deflator (down to 0.9%) and CPI (~1.1%) on
the results obtained in the regression study.


title:
The microscopic theory of the upper critical field Hc2 in two-band
  systems in the magnetic field directed parallel and perpendicular to the
  plane (ab). Application to MgB2

abstract:
  The microscopic superconductivity theory in MgB2 systems in the magnetic
fields directed parallel and perpendicular to the plane (ab) is built. The two
energy bands of different dimensions overlapping on the Fermi surface
(two-dimensional sigma- band and three-dimensional pi-band) are taken into
account. The theory is built taking into account the weak dispersion of the
electron energy of sigma -band in z direction. The systems of equations for the
superconductive transition temperature Tc and the upper critical field Hc2(ab)
are obtained. The analytic solutions of the equations for Hc2^0(ab) are found
in the two temperature areas: nearby the zero temperature T<<Tc^0 and in the
vicinity of the superconductive transition temperature Tc^0-T<<Tc^0. The
temperature dependencies of the upper critical fields Hc2(ab) and Hc2(c) on the
temperature are built, and the anisotropy coefficient gammaH=Hc2^0(ab)/Hc2^0(c)
is determined. It is shown that the value of Hc2(ab) exceeds greatly the value
of Hc2(c) due to the system anisotropy (to small values of the average velocity
of electrons in the crystallographic axis direction).


title:
Classical simulation of quantum computation, the Gottesman-Knill
  theorem, and slightly beyond

abstract:
  We study classical simulation of quantum computation, taking the
Gottesman-Knill theorem as a starting point. We show how each Clifford circuit
can be reduced to an equivalent, manifestly simulatable circuit (normal form).
This provides a simple proof of the Gottesman-Knill theorem without resorting
to stabilizer techniques. The normal form highlights why Clifford circuits have
such limited computational power in spite of their high entangling power. At
the same time, the normal form shows how the classical simulation of Clifford
circuits fits into the standard way of embedding classical computation into the
quantum circuit model. This leads to simple extensions of Clifford circuits
which are classically simulatable. These circuits can be efficiently simulated
by classical sampling ('weak simulation') even though the problem of exactly
computing the outcomes of measurements for these circuits ('strong simulation')
is proved to be #P-complete--thus showing that there is a separation between
weak and strong classical simulation of quantum computation.


title:
Absorption Phenomena and a Probable Blast Wave in the 13 July 2004
  Eruptive Event

abstract:
  We present a case study of the 13 July 2004 solar event, in which
disturbances caused by eruption of a filament from an active region embraced a
quarter of the visible solar surface. Remarkable are absorption phenomena
observed in the SOHO/EIT 304 A channel; they were also visible in the EIT 195 A
channel, in the H-alpha line, and even in total radio flux records. Coronal and
Moreton waves were also observed. Multi-spectral data allowed reconstructing an
overall picture of the event. An explosive filament eruption and related
impulsive flare produced a CME and blast shock, both of which decelerated and
propagated independently. Coronal and Moreton waves were kinematically close
and both decelerated in accordance with an expected motion of the coronal blast
shock. The CME did not resemble a classical three-component structure,
probably, because some part of the ejected mass fell back onto the Sun.
Quantitative evaluations from different observations provide close estimates of
the falling mass, ~3 10^15 g, which is close to the estimated mass of the CME.
The falling material was responsible for the observed large-scale absorption
phenomena, in particular, shallow widespread moving dimmings observed at 195 A.
By contrast, deep quasi-stationary dimmings observed in this band near the
eruption center were due to plasma density decrease in coronal structures.


title: The physical observer I: Absolute and relative fields

abstract:
  Quantum Jet Theory (QJT) is a deformation of QFT where also the quantum
dynamics of the observer is taken into account. This is achieved by introducing
relative fields, labelled by locations measured by rods relative to the
observer's position. In the Hamiltonian formalism, the observer's momentum is
modified: p_i \to p_i - P_i, where P_i is the momentum carried by the field
quanta. The free scalar field, free electromagnetism and gravity are treated as
examples. Standard QFT results are recovered in the limit that the observer's
mass M \to \infty and its charge e \to 0. This limit is well defined except for
gravity, because e = M in that case (heavy mass equals inert mass). In a
companion paper we describe how QJT also leads to new observer-dependent gauge
and diff anomalies, which can not be formulated within QFT proper.


title: The physical observer II: Gauge and diff anomalies

abstract:
  In a companion paper we studied field theory in the presence of a physical
observer with quantum dynamics. Here we describe the most striking consequence
of this assumption: new gauge and diff anomalies arise. The relevant cocycles
depend on the observer's spacetime trajectory and can hence not appear in QFT,
where this quantity is never introduced. Diff anomalies necessarily arise in
every locally nontrivial, non-holographic theory of quantum gravity.
Cancellation of the divergent parts of the anomalies only works if spacetime
has four dimensions.


title: Derivations in algebras of operator-valued functions

abstract:
  In this paper we study derivations in subalgebras of $L_{0}^{wo}(\nu ;%
\mathcal{L}(X)) $, the algebra of all weak operator measurable funtions $f:S\to
\mathcal{L}(X) $, where $% \mathcal{L}(X) $ is the Banach algebra of all
bounded linear operators on a Banach space $X$. It is shown, in particular,
that all derivations on $L_{0}^{wo}(\nu ;\mathcal{L}(X)) $ are inner whenever
$X$ is separable and infinite dimensional. This contrasts strongly with the
fact that $L_{0}^{wo}(\nu ;\mathcal{L}(X)) $ admits non-trivial non-inner
derivations whenever $X$ is finite dimensional and the measure $\nu $ is
non-atomic. As an application of our approach, we study derivations in various
algebras of measurable operators affiliated with von Neumann algebras.


title:
Pairwise maximum entropy models for studying large biological systems:
  when they can and when they can't work

abstract:
  One of the most critical problems we face in the study of biological systems
is building accurate statistical descriptions of them. This problem has been
particularly challenging because biological systems typically contain large
numbers of interacting elements, which precludes the use of standard brute
force approaches. Recently, though, several groups have reported that there may
be an alternate strategy. The reports show that reliable statistical models can
be built without knowledge of all the interactions in a system; instead,
pairwise interactions can suffice. These findings, however, are based on the
analysis of small subsystems. Here we ask whether the observations will
generalize to systems of realistic size, that is, whether pairwise models will
provide reliable descriptions of true biological systems. Our results show
that, in most cases, they will not. The reason is that there is a crossover in
the predictive power of pairwise models: If the size of the subsystem is below
the crossover point, then the results have no predictive power for large
systems. If the size is above the crossover point, the results do have
predictive power. This work thus provides a general framework for determining
the extent to which pairwise models can be used to predict the behavior of
whole biological systems. Applied to neural data, the size of most systems
studied so far is below the crossover point.


title: INTEGRAL monitoring of unusually long X-ray bursts

abstract:
  X-ray bursts are thermonuclear explosions on the surface of accreting neutron
stars in low mass X-ray binaries. As most of the known X-ray bursters are
frequently observed by INTEGRAL, an international collaboration have been
taking advantage of its instrumentation to specifically monitor the occurrence
of exceptional burst events lasting more than ~10 minutes. Half of the
so-called intermediate long bursts registered so far have been observed by
INTEGRAL. The goal is to derive a comprehensive picture of the relationship
between the nuclear ignition processes and the accretion states of the system
leading up to such long bursts. Depending on the composition of the accreted
material, these bursts may be explained by either the unstable burning of a
large pile of mixed hydrogen and helium, or the ignition of a thick pure helium
layer. Intermediate long bursts are particularly expected to occur at very low
accretion rates and make possible to study the transition from a hydrogen-rich
bursting regime to a pure helium regime.


title: Tri-Bimaximal Mixing from Twisted Friedberg-Lee Symmetry

abstract:
  We investigate the Friedberg-Lee (FL) symmetry and its promotion to include
the $\mu - \tau$ symmetry, and call that the twisted FL symmetry.Based on the
twisted FL symmetry, two possible schemes are presented toward the realistic
neutrino mass spectrum and the tri-bimaximal mixing.In the first scheme, we
suggest the semi-uniform translation of the FL symmetry.The second one is based
on the $S_3$ permutation family symmetry.The breaking terms, which are twisted
FL symmetric, are introduced.Some viable models in each scheme are also
presented.


title:
Spectroscopic implications from the combined analysis of processes with
  pseudoscalar mesons

abstract:
  In the analysis a status and parameters of the scalar, vector, and tensor
mesonic resonances are obtained and compared with other results. Possible
classification of the resonance states in terms of the SU(3) multiplets is
discussed.


title:
Detecting non-sinusoidal periodicities in observational data using
  multi-harmonic periodograms

abstract:
  We address the problem of assessing the statistical significance of candidate
periodicities found using the so-called `multi-harmonic' periodogram, which is
being used for detection of non-sinusoidal signals, and is based on the
least-squares fitting of truncated Fourier series. The recent investigation
(Baluev 2008) made for the Lomb-Scargle periodogram is extended to the more
general multi-harmonic periodogram. As a result, closed and efficient analytic
approximations to the false alarm probability, associated with multi-harmonic
periodogram peaks, are obtained. The resulting analytic approximations are
tested under various conditions using Monte Carlo simulations. The simulations
showed a suitable precision and robustness of these approximations.


title:
Statistical Properties of the Final State in One-dimensional Ballistic
  Aggregation

abstract:
  We investigate the long time behaviour of the one-dimensional ballistic
aggregation model that represents a sticky gas of N particles with random
initial positions and velocities, moving deterministically, and forming
aggregates when they collide. We obtain a closed formula for the stationary
measure of the system which allows us to analyze some remarkable features of
the final `fan' state. In particular, we identify universal properties which
are independent of the initial position and velocity distributions of the
particles. We study cluster distributions and derive exact results for extreme
value statistics (because of correlations these distributions do not belong to
the Gumbel-Frechet-Weibull universality classes). We also derive the energy
distribution in the final state. This model generates dynamically many
different scales and can be viewed as one of the simplest exactly solvable
model of N-body dissipative dynamics.


title: Distribution of the Brownian motion on its way to hitting zero

abstract:
  For the one-dimensional Brownian motion $B=(B_t)_{t\ge 0}$, started at $x>0$,
and the first hitting time $\tau=\inf\{t\ge 0:B_t=0\}$, we find the probability
density of $B_{u\tau}$ for a $u\in(0,1)$, i.e. of the Brownian motion on its
way to hitting zero.


title: The CFT-interpolating Black Hole in Three Dimensions

abstract:
  We present a new exact black hole solution in three dimensional Einstein
gravity coupled to a single scalar field. This is one of the extended solutions
of the BTZ black hole and has in fact $\textrm{AdS}_3$ geometries both at the
spatial infinity and at the event horizon. An explicit derivation of Virasoro
algebras for $\textrm{CFT}_2$ at the two boundaries is shown to be possible
\`{a} la Brown and Henneaux's calculation. If we regard the scalar field as a
running coupling in the dual two dimensional field theory, and its flow in the
bulk as the "holographic" renormalization group flow, our black hole should
interpolate the two $\textrm{CFT}_2$ living at the infinity and at the horizon.
Following the Hamilton-Jacobi analysis by de Boer, Verlinde and Verlinde, we
calculate the central charges $c_{\textrm{UV}}$ and $c_{\textrm{IR}}$ for the
$\textrm{CFT}_2$ on the infinity and the horizon, respectively. We also confirm
that the inequality $c_{\textrm{IR}} < c_{\textrm{UV}}$ is satisfied, which is
consistent with the Zamolodchikov's c-theorem.


title: Interacting Anyonic Fermions in a Two-Body Color Code Model

abstract:
  We introduce a two-body quantum Hamiltonian model of spin-1/2 on a 2D spatial
lattice with exact topological degeneracy in all coupling regimes. There exists
a gapped phase in which the low-energy sector reproduces an effective color
code model. High energy excitations fall into three families of anyonic
fermions that turn out to be strongly interacting. The model exhibits a Z_2xZ_2
gauge group symmetry and string-net integrals of motion, which are related to
the existence of topological charges that are invisible to moving high-energy
fermions.


title:
Large-scale intermittency of liquid-metal channel flow in a magnetic
  field

abstract:
  We predict a novel flow regime in liquid metals under the influence of a
magnetic field. It is characterised by long periods of nearly steady,
two-dimensional flow interrupted by violent three-dimensional bursts. Our
prediction has been obtained from direct numerical simulations in a channel
geometry at low magnetic Reynolds number and translates into physical
parameters which are amenable to experimental verification under laboratory
conditions. The new regime occurs in a wide range of parameters and may have
implications for metallurgical applications.


title: Motion of test bodies in theories with nonminimal coupling

abstract:
  We derive the equations of motion of test bodies for a theory with nonminimal
coupling by means of a multipole method. The propagation equations for
pole-dipole particles are worked out for a gravity theory with a very general
coupling between the curvature scalar and the matter fields. Our results allow
for a systematic comparison with the equations of motion of general relativity
and other gravity theories.


title: Minimal pseudocompact group topologies on free abelian groups

abstract:
  A Hausdorff topological group G is minimal if every continuous isomorphism f:
G --> H between G and a Hausdorff topological group H is open. Significantly
strengthening a 1981 result of Stoyanov, we prove the following theorem: For
every infinite minimal abelian group G there exists a sequence {\sigma_n : n\in
N} of cardinals such that w(G) = sup {\sigma_n : n \in N} and sup {2^{\sigma_n}
: n \in N} \leq |G| \leq 2^{w(G)}, where w(G) is the weight of G. If G is an
infinite minimal abelian group, then either |G| = 2^\sigma for some cardinal
\sigma, or w(G) = min {\sigma: |G| \leq 2^\sigma}; moreover, the equality |G| =
2^{w(G)} holds whenever cf (w(G)) > \omega. For a cardinal \kappa, we denote by
F_\kappa the free abelian group with \kappa many generators. If F_\kappa admits
a pseudocompact group topology, then \kappa \geq c, where c is the cardinality
of the continuum. We show that the existence of a minimal pseudocompact group
topology on F_c is equivalent to the Lusin's Hypothesis 2^{\omega_1} = c. For
\kappa > c, we prove that F_\kappa admits a (zero-dimensional) minimal
pseudocompact group topology if and only if F_\kappa has both a minimal group
topology and a pseudocompact group topology. If \kappa > c, then F_\kappa
admits a connected minimal pseudocompact group topology of weight \sigma if and
only if \kappa = 2^\sigma. Finally, we establish that no infinite torsion-free
abelian group can be equipped with a locally connected minimal group topology.


title:
A parameter study of self-consistent disk models around Herbig AeBe
  stars

abstract:
  We present a parameter study of self-consistent models of protoplanetary
disks around Herbig AeBe stars. We use the code developed by Dullemond and
Dominik, which solves the 2D radiative transfer problem including an iteration
for the vertical hydrostatic structure of the disk. This grid of models will be
used for several studies on disk emission and mineralogy in followup papers. In
this paper we take a first look on the new models, compare them with previous
modeling attempts and focus on the effects of various parameters on the overall
structure of the SED that leads to the classification of Herbig AeBe stars into
two groups, with a flaring (group I) or self-shadowed (group II) SED. We find
that the parameter of overriding importance to the SED is the total mass in
grains smaller than 25um, confirming the earlier results by Dullemond and
Dominik. All other parameters studied have only minor influences, and will
alter the SED type only in borderline cases. We find that there is no natural
dichotomy between group I and II. From a modeling point of view, the transition
is a continuous function of the small dust mass. We also show that moderate
grain growth produces spectra with weak or no 1um feature, both for flaring
(Group I) and non-flaring (Group II) sources. The fact that sources with weak
features have been found mostly in Group I sources is therefore surprising and
must be due to observational biases or evolutionary effects.


title:
Ginsparg-Wilson Formulation of 2D N =(2,2) SQCD with Exact Lattice
  Supersymmetry

abstract:
  In this paper, we introduce the overlap Dirac operator, which satisfies the
Ginsparg-Wilson relation, to the matter sector of two-dimensional N=(2,2)
lattice supersymmetric QCD (SQCD) with preserving one of the supercharges. It
realizes the exact chiral flavor symmetry on the lattice, to make possible to
define the lattice action for general number of the flavors of fundamental and
anti-fundamental matter multiplets and for general twisted masses. Furthermore,
superpotential terms can be introduced with exact holomorphic or
anti-holomorphic structure on the lattice. We also consider the lattice
formulation of matter multiplets charged only under the central U(1) (the
overall U(1)) of the gauge group G=U(N), and then construct lattice models for
gauged linear sigma models with exactly preserving one supercharge and their
chiral flavor symmetry.


title:
Simplifying the algebra of first class constraints, examples on SO(3)
  and SO(4)

abstract:
  We discuss the problem of non abelian constrained systems and the origin of
appearance of non abelian algebras. We show that it is possible, in principle,
to change a non abelian system to an abelian one, at least locally. Our method
is based on solutions of the differential equations due to the algebra of first
class constraints. We suggest that multiplicative constraints should be
regularized at each step of calculation. Some examples on SO(3) and SO(4)
algebras are discussed. We show that they can be replaced by abelian
constraints.


title: On the nature of the $\pi_2(1880)

abstract:
  The strong decays of the $\pi_2(1880)$ as the $2 ^1D_2$ quark-antiquark state
are investigated in the $^3P_0$ model and the flux-tube model, respectively.
The results are similar in the two models. It is found that the decay patterns
of the conventional $2 ^1D_2$ meson and the $2^{-+}$ light hybrid are very
different, and the experimental evidence for the $\pi_2(1880)$ is consistent
with it being the conventional $2 ^1D_2$ meson rather than the $2^{-+}$ light
hybrid. The possibility of the $\pi_2(1880)$ being a mixture of the
conventional $q\bar{q}$ and the hybrid is discussed.


title: Self-sustained traversable wormholes in noncommutative geometry

abstract:
  In this work, we find exact wormhole solutions in the context of
noncommutative geometry, and further explore their physical properties and
characteristics. The energy density of these wormhole geometries is a smeared
and particle-like gravitational source, where the mass is diffused throughout a
region of linear dimension $\sqrt{\alpha}$ due to the intrinsic uncertainty
encoded in the coordinate commutator. Furthermore, we also analyze these
wormhole geometries considering that the equation governing quantum
fluctuations behaves as a backreaction equation. In particular, the energy
density of the graviton one loop contribution to a classical energy in a
traversable wormhole background and the finite one loop energy density is
considered as a self-consistent source for these wormhole geometries.
Interesting solutions are found for an appropriate range of the parameters,
validating the perturbative computation introduced in this semi-classical
approach.


title: The Stromlo Missing Satellites Survey

abstract:
  The Stromlo Missing Satellites (SMS) program is a critical endeavor to
investigate whether cold dark matter cosmology is flawed in its ability to
describe the matter distribution on galaxy scales or proves itself once again
as a powerful theory to make observational predictions. The project will
deliver unprecedented results on Milky Way satellite numbers, their
distribution and physical properties. It is the deepest, most extended survey
for optically elusive dwarf satellite galaxies to date, covering the entire
20,000 sq deg of the Southern hemisphere. 150TB of CCD images will be analysed
in six photometric bands, 0.5-1.0 mag fainter than SDSS produced by the ANU
SkyMapper telescope over the next five years. (For more details see:
http://msowww.anu.edu.au/~jerjen/SMS_Survey.html)


title: Slow Light in a Bragg Waveguide

abstract:
  One-dimensional defect photonic crystal (Bragg waveguide) is studied from the
viewpoint of the slow light problem. The calculations are presented showing
that in the TiO$_2$/SiO$_2$-based Bragg waveguide one can obtain the group
index of $\sim$ 1000 and spatial decay length of $\sim$ 3 mm for a
nanosecond-scale pulse. Distortion of the pulse due to the group index
dispersion proves to be acceptable for the relative pulse delay not exceeding
10. We also analyze propagation of the light pulse in the Bragg waveguide with
a quantum well inside and provide arguments showing possibility of reaching the
group index of $\sim$ 10000. To the best of our knowledge, analysis of pulse
propagation in a Bragg waveguide in connection with the slow light problem has
not been performed so far. We will still much appreciate any information about
such studies, if any.


title:
Can the "Darmstadt oscillations" be treated as two closely spaced
  mass-eigenstates of the H-like mother ions ?

abstract:
  We discuss the proposal that the "Darmstadt oscillations" of the orbital
K-shell electron capture decay (EC) rate of the H-like heavy ions are caused by
quantum beats of two coherently excited, closely spaced mass-eigenstates of
decaying H-like heavy ions. We show that such a mechanism to explain the time
modulation of the EC-decay rates of the H-like heavy ions leads to the time
modulation of the beta^+ decay rate of these ions with the same period. Such a
time-dependence of the beta^+ decay rate of the H-like heavy ions contradicts
the experimental data of GSI.


title:
The structure of supersymmetry in ${\cal PT}$ symmetric quantum
  mechanics

abstract:
  The structure of supersymmetry is analyzed systematically in ${\cal PT}$
symmetric quantum mechanical theories. We give a detailed description of
supersymmetric systems associated with one dimensional ${\cal PT}$ symmetric
quantum mechanical theories. We show that there is a richer structure present
in these theories compared to the conventional theories associated with
Hermitian Hamiltonians. We bring out various properties associated with these
supersymmetric systems and generalize such quantum mechanical theories to
higher dimensions as well as to the case of one dimensional shape invariant
potentials.


title:
Nonholonomic deformation of KdV and mKdV equations and their symmetries,
  hierarchies and integrability

abstract:
  Recent concept of integrable nonholonomic deformation found for the KdV
equation is extended to the mKdV equation and generalized to the AKNS system.
For the deformed mKdV equation we find a matrix Lax pair, a novel two-fold
integrable hierarchy and exact N-soliton solutions exhibiting unusual
accelerating motion. We show that both the deformed KdV and mKdV systems
possess infinitely many generalized symmetries, conserved quantities and a
recursion operator.


title: Quantum measuring processes for trapped ultracold bosonic gases

abstract:
  The standard experimental techniques usually adopted in the study of the
behaviour of ultracold atoms in optical lattices involve extracting the atom
density profile from absorption images of the atomic sample after trap release.
Quantum mechanically this procedure is described by a generalized measure
(POVM); interference patterns found in absorption images suggest a generalized
measure based on fixed-phase, coherent-like states. We show that this leads to
an average atomic density which differs from the usually adopted one, obtained
as the expectation value of the atom density operator in the many-body state.


title: On iterated almost $\nu$-stable derived equivalences

abstract:
  In a recent paper \cite{HuXi3}, we introduced a classes of derived
equivalences called almost $\nu$-stable derived equivalences. The most
important property is that an almost $\nu$-stable derived equivalence always
induces a stable equivalence of Morita type, which generalizes a well-known
result of Rickard: derived-equivalent self-injective algebras are stably
equivalent of Morita type. In this paper, we shall consider the compositions of
almost $\nu$-stable derived equivalences and their quasi-inverses, which is
called iterated almost $\nu$-stable derived equivalences. We give a sufficient
and necessary condition for a derived equivalence to be an iterated almost
$\nu$-stable derived equivalence, and give an explicit construction of the
stable equivalence functor induced by an iterated almost $\nu$-stable derived
equivalence. As a consequence, we get some new sufficient conditions for a
derived finite-dimensional algebras to induce a stable equivalence of Morita
type.


title: Emergence of quantum mechanics from classical statistics

abstract:
  The conceptual setting of quantum mechanics is subject to an ongoing debate
from its beginnings until now. The consequences of the apparent differences
between quantum statistics and classical statistics range from the
philosophical interpretations to practical issues as quantum computing. In this
note we demonstrate how quantum mechanics can emerge from classical statistical
systems. We discuss conditions and circumstances for this to happen. Quantum
systems describe isolated subsystems of classical statistical systems with
infinitely many states. While infinitely many classical observables "measure"
properties of the subsystem and its environment, the state of the subsystem can
be characterized by the expectation values of only a few probabilistic
observables. They define a density matrix, and all the usual laws of quantum
mechanics follow. No concepts beyond classical statistics are needed for
quantum physics - the differences are only apparent and result from the
particularities of those classical statistical systems which admit a quantum
mechanical description. In particular, we show how the non-commuting properties
of quantum operators are associated to the use of conditional probabilities
within the classical system, and how a unitary time evolution reflects the
isolation of the subsystem.


title: Biharmonic curves on \textit{LP}-Sasakian manifolds

abstract:
  In this paper we give necessary and sufficient conditions for spacelike and
timelike curves in a conformally flat, quasi conformally flat and conformally
symmetric 4-dimensional \textit{LP}-Sasakian manifold to be proper biharmonic.
Also, we investigate proper biharmonic curves in the Lorentzian sphere
$S^{4}_{1}$.


title:
On time-reversal and space-time harmonic processes for Markovian quantum
  channels

abstract:
  The time reversal of a completely-positive, nonequilibrium discrete-time
quantum Markov evolution is derived via a suitable adjointness relation.
Space-time harmonic processes are introduced for the forward and reverse-time
transition mechanisms, and their role for relative entropy dynamics is
discussed.


title:
SMA CO(J=6-5) and 435 micron interferometric imaging of the nuclear
  region of Arp 220

abstract:
  We have used the Submillimeter Array (SMA) to make the first interferometric
observations (beam size ~1") of the 12CO J=6-5 line and 435 micron (690 GHz)
continuum emission toward the central region of the nearby ULIRG Arp 220. These
observations resolve the eastern and western nuclei from each other, in both
the molecular line and dust continuum emission. At 435 micron, the peak
intensity of the western nucleus is stronger than the eastern nucleus, and the
difference in peak intensities is less than at longer wavelengths. Fitting a
simple model to the dust emission observed between 1.3 mm and 435 micron
suggests that dust emissivity power law index in the western nucleus is near
unity and steeper in the eastern nucleus, about 2, and that the dust emission
is optically thick at the shorter wavelength. Comparison with single dish
measurements indicate that the interferometer observations are missing ~60% of
the dust emission, most likely from a spatially extended component to which
these observations are not sensitive. The 12CO J=6-5 line observations clearly
resolve kinematically the two nuclei. The distribution and kinematics of the
12CO J=6-5 line appear to be very similar to lower J CO lies observed at
similar resolution. Analysis of multiple 12CO line intensities indicates that
the molecular gas in both nuclei have similar excitation conditions, although
the western nucleus is warmer and denser. The excitation conditions are similar
to those found in other extreme environments, including M82, Mrk 231, and BR
1202-0725. Simultaneous lower resolution observations of the 12CO, 13CO, and
C18O J=2-1 lines show that the 13CO and C18O lines have similar intensities,
which suggests that both of these lines are optically thick, or possibly that
extreme high mass star formation has produced in an overabundance of C18O.


title: Very High Energy Gamma-Ray Observations of the Galactic Centre Region

abstract:
  Recent progress in pushing the sensitivity of the Imaging Atmospheric
Cherenkov Technique into the 10 mCrab regime has enabled first sensitive
observations of the innermost few 100 pc of the Milky Way in Very High Energy
(VHE; >100 GeV) gamma rays. These observations are a valuable tool to
understand the acceleration and propagation of energetic particles near the
Galactic Centre. Remarkably, besides two compact gamma-ray sources, faint
diffuse gamma-ray emission has been discovered with high significance. The
current VHE gamma-ray view of the Galactic Centre region is reviewed, and
possible counterparts of the gamma-ray sources and the origin of the diffuse
emission are discussed. The future prospects for VHE Galactic Centre
observations are discussed based on order-of-magnitude estimates for a CTA type
array of telescopes.


title: Rotating elastic bodies in Einstein gravity

abstract:
  We prove that, given a stress-free, axially symmetric elastic body, there
exists, for sufficiently small values of the gravitational constant and of the
angular frequency, a unique stationary axisymmetric solution to the Einstein
equations coupled to the equations of relativistic elasticity with the body
performing rigid rotations around the symmetry axis at the given angular
frequency.


title:
Discrete-time classical and quantum Markovian evolutions: Maximum
  entropy problems on path space

abstract:
  The theory of Schroedinger bridges for diffusion processes is extended to
classical and quantum discrete-time Markovian evolutions. The solution of the
path space maximum entropy problems is obtained from the a priori model in both
cases via a suitable multiplicative functional transformation. In the quantum
case, nonequilibrium time reversal of quantum channels is discussed and
space-time harmonic processes are introduced.


title:
Exchange coupling between two ferromagnetic electrodes separated by a
  graphene nanoribbon

abstract:
  In this study, based on the self-energy method and the total energy
calculation, the indirect exchange coupling between two semi-infinite
ferromagnetic strips (FM electrodes) separated by metallic graphene nanoribbons
(GNRs) is investigated. In order to form a FM/GNR/FM junction, a graphitic
region of finite length is coupled to the FM electrodes along graphitic zigzag
or armchair interfaces of width $N$. The numerical results show that, the
exchange coupling strength which can be obtained from the difference between
the total energies of electrons in the ferromagnetic and antiferromagnetic
couplings, has an oscillatory behavior, and depends on the Fermi energy and the
length of the central region.


title:
A New Training Protocol for Channel State Estimation in Wireless Relay
  Networks

abstract:
  The accuracy of channel state information (CSI) is critical for improving the
capacity of wireless networks. In this paper, we introduce a training protocol
for wireless relay networks that uses channel estimation and feedforwarding
methods. The feedforwarding method is the distinctive feature of the proposed
protocol. As we show, each relay feedforwards the imperfect CSI to the
destination in a way that provides a higher network capacity and a faster
transfer of the CSI than the existing protocols. In addition, we show the
importance of the effective CSI accuracy on the wireless relay network capacity
by comparing networks with the perfect effective CSI, imperfect effective CSI,
and noisy imperfect effective CSI available at the destination.


title: Kinetic transport theory with quantum coherence

abstract:
  We derive transport equations for fermions and bosons in spatially or
temporally varying backgrounds with special symmetries, by use of the
Schwinger-Keldysh formalism. In a noninteracting theory the coherence
information is shown to be encoded in new singular shells for the 2-point
function. Imposing this phase space structure to the interacting theory leads
to a a self-consistent equation of motion for a physcial density matrix,
including coherence and a well defined collision integral. The method is
applied e.g. to demonstrate how an initially coherent out-of-equlibrium state
approaches equlibrium through decoherence and thermalization.


title:
Uniqueness of positive solutions to semilinear elliptic equations with
  double power nonlinearities

abstract:
  We consider semilinear elliptic equations with double power nonlineaities.
The condition to assure the existence of positive solutions is well-known. In
the present paper, we remark that the additional condition to assure uniqueness
proposed by Ouyang and Shi is unnecessary.


title:
An improved formulation of the relativistic hydrodynamics equations in
  2D Cartesian coordinates

abstract:
  A number of astrophysical scenarios possess and preserve an overall
cylindrical symmetry also when undergoing a catastrophic and nonlinear
evolution. Exploiting such a symmetry, these processes can be studied through
numerical-relativity simulations at smaller computational costs and at
considerably larger spatial resolutions. We here present a new
flux-conservative formulation of the relativistic hydrodynamics equations in
cylindrical coordinates. By rearranging those terms in the equations which are
the sources of the largest numerical errors, the new formulation yields a
global truncation error which is one or more orders of magnitude smaller than
those of alternative and commonly used formulations. We illustrate this through
a series of numerical tests involving the evolution of oscillating spherical
and rotating stars, as well as shock-tube tests.


title:
Determination of the noise parameters in a one-dimensional open quantum
  system

abstract:
  We consider an electron magnetically interacting with a spin-1/2 impurity,
embedded in an external environment whose noisy term acts only on the
impurity's spin, and we find expressions for the electron transmission and
reflection probabilities in terms of the phenomenological noise parameters.
Moreover, we give a simple example of the necessity of complete positivity for
physical consistency, showing that a positive but not completely positive
dissipative map can lead to negative transmission probabilities.


title: Identifying quadric bundle structures on complex projective varieties

abstract:
  In this paper we characterize smooth complex projective varieties that admit
a quadric bundle structure on some dense open subset in terms of the geometry
of certain families of rational curves.


title:
Boundary Value Problem for an Oblique Paraxial Model of Light
  Propagation

abstract:
  We study the Schr\"odinger equation which comes from the paraxial
approximation of the Helmholtz equation in the case where the direction of
propagation is tilted with respect to the boundary of the domain. This model
has been proposed in (Doumic, Golse, Sentis, CRAS, 2003). Our primary interest
here is in the boundary conditions successively in a half-plane, then in a
quadrant of R2. The half-plane problem has been used in (Doumic, Duboc, Golse,
Sentis, JCP, to appear) to build a numerical method, which has been introduced
in the HERA plateform of CEA.


title:
\'Etude longitudinale d'une proc\'edure de mod\'elisation de
  connaissances en mati\`ere de gestion du territoire agricole

abstract:
  This paper gives an introduction to this issue, and presents the framework
and the main steps of the Rosa project. Four teams of researchers, agronomists,
computer scientists, psychologists and linguists were involved during five
years within this project that aimed at the development of a knowledge based
system. The purpose of the Rosa system is the modelling and the comparison of
farm spatial organizations. It relies on a formalization of agronomical
knowledge and thus induces a joint knowledge building process involving both
the agronomists and the computer scientists. The paper describes the steps of
the modelling process as well as the filming procedures set up by the
psychologists and linguists in order to make explicit and to analyze the
underlying knowledge building process.


title: Lorentz violation and black-hole thermodynamics

abstract:
  We consider nonstandard photons from nonbirefringent modified Maxwell theory
and discuss their propagation in a fixed Schwarzschild spacetime background.
This particular modification of Maxwell theory is Lorentz-violating and allows
for maximal photon velocities differing from the causal speed c of the
asymptotic background spacetime. In the limit of geometrical optics, light rays
from modified Maxwell theory are found to propagate along null geodesics in an
effective metric. We observe that not every Lorentz-violating theory with
multiple maximal velocities different from the causal speed c modifies the
notion of the event horizon, contrary to naive expectations. This result
implies that not every Lorentz-violating theory with multiple maximal
velocities necessarily leads to a contradiction with the generalized second law
of thermodynamics.


title:
Influence of configuration and acoustic phonons on three-qubit
  controlled-phase gate

abstract:
  We discuss the configuration and acoustic phonon effect on the conditional
phase gate using self assembled quantum dots. As an example, we discuss the
simplest three dots conditional phase gate, and we found that the fidelity of
conditional phase gate depends strongly on the configuration and temperature.
Numerical simulation shows that line-configuration resonant with lower single
exciton energy level performs better during the gate operation.


title:
Dynamical heterogeneity in a model for permanent gels: Different
  behavior of dynamical susceptibilities

abstract:
  We present a systematic study of dynamical heterogeneity in a model for
permanent gels, upon approaching the gelation threshold. We find that the
fluctuations of the self intermediate scattering function are increasing
functions of time, reaching a plateau whose value, at large length scales,
coincides with the mean cluster size and diverges at the percolation threshold.
Another measure of dynamical heterogeneities, i.e. the fluctuations of the
self-overlap, displays instead a peak and decays to zero at long times. The
peak, however, also scales as the mean cluster size. Arguments are given for
this difference in the long time behavior. We also find that non-Gaussian
parameter reaches a plateau in the long time limit. The value of the plateau of
the non-Gaussian parameter, which is connected to the fluctuations of
diffusivity of clusters, increases with the volume fraction and remains finite
at percolation threshold.


title:
Existence and uniqueness conditions of positive solutions to semilinear
  elliptic equations with double power nonlinearities

abstract:
  In this article we find the equivalent conditions to assure the existence and
uniqueness of positive solutions to semilinear elliptic equations wih double
power nonlinearities. As a bonus, we give a simpler proof of our former result
that the uniqueness condition comes from the existence condition.


title: The multiplicative domain in quantum error correction

abstract:
  We show that the multiplicative domain of a completely positive map yields a
new class of quantum error correcting codes. In the case of a unital quantum
channel, these are precisely the codes that do not require a measurement as
part of the recovery process, the so-called unitarily correctable codes.
Whereas in the arbitrary, not necessarily unital case they form a proper subset
of unitarily correctable codes that can be computed from properties of the
channel. As part of the analysis we derive a representation theoretic
characterization of subsystem codes. We also present a number of illustrative
examples.


title: Multiple local whittle estimation in stationary systems

abstract:
  Moving from univariate to bivariate jointly dependent long-memory time series
introduces a phase parameter $(\gamma)$, at the frequency of principal
interest, zero; for short-memory series $\gamma=0$ automatically. The latter
case has also been stressed under long memory, along with the ``fractional
differencing'' case $\gamma=(\delta_2-\delta_1)\pi /2$, where $\delta_1$,
$\delta_2$ are the memory parameters of the two series. We develop time domain
conditions under which these are and are not relevant, and relate the
consequent properties of cross-autocovariances to ones of the (possibly
bilateral) moving average representation which, with martingale difference
innovations of arbitrary dimension, is used in asymptotic theory for local
Whittle parameter estimates depending on a single smoothing number.
Incorporating also a regression parameter $(\beta)$ which, when nonzero,
indicates cointegration, the consistency proof of these implicitly defined
estimates is nonstandard due to the $\beta$ estimate converging faster than the
others. We also establish joint asymptotic normality of the estimates, and
indicate how this outcome can apply in statistical inference on several
questions of interest. Issues of implemention are discussed, along with
implications of knowing $\beta$ and of correct or incorrect specification of
$\gamma$, and possible extensions to higher-dimensional systems and
nonstationary series.


title: On percolation and the bunkbed conjecture

abstract:
  We study a problem on edge percolation on product graphs $G\times K_2$. Here
$G$ is any finite graph and $K_2$ consists of two vertices $\{0,1\}$ connected
by an edge. Every edge in $G\times K_2$ is present with probability $p$
independent of other edges. The Bunkbed conjecture states that for all $G$ and
$p$ the probability that $(u,0)$ is in the same component as $(v,0)$ is greater
than or equal to the probability that $(u,0)$ is in the same component as
$(v,1)$ for every pair of vertices $u,v\in G$.
  We generalize this conjecture and formulate and prove similar statements for
randomly directed graphs. The methods lead to a proof of the original
conjecture for special classes of graphs $G$, in particular outerplanar graphs.


title: Andreev reflection through Fano resonances in molecular wires

abstract:
  We study Andreev reflection in a normal conductor-molecule-superconductor
junction using a first principles approach. In particular, we focus on a family
of molecules consisting of a molecular backbone and a weakly coupled side
group. We show that the presence of the side group can lead to a Fano resonance
in the Andreev reflection. We use a simple theoretical model to explain the
results of the numerical calculations and to make predictions about the
possible sub-gap resonance structures in the Andreev reflection coefficient.


title: Classification of double power nonlinear functions

abstract:
  In this article we investigate the nature of the functions, including
important double power terms which arise naturally in considering typical
nonlinear Schroedinger equations.


title: Raptor Codes and Cryptographic Issues

abstract:
  In this paper two cryptographic methods are introduced. In the first method
the presence of a certain size subgroup of persons can be checked for an action
to take place. For this we use fragments of Raptor codes delivered to the group
members. In the other method a selection of a subset of objects can be made
secret. Also, it can be proven afterwards, what the original selection was.


title: Neutrino masses, leptogenesis and dark matter in hybrid seesaw

abstract:
  We suggest a hybrid seesaw model where relatively ``light''right-handed
neutrinos give no contribution to the neutrino mass matrix due to a special
symmetry. This allows their Yukawa couplings to the standard model particles to
be relatively strong, so that the standard model Higgs boson can decay
dominantly to a left and a right-handed neutrino, leaving another stable
right-handed neutrino as cold dark matter. In our model neutrino masses arise
via the type-II seesaw mechanism, the Higgs triplet scalars being also
responsible for the generation of the matter-antimatter asymmetry via the
leptogenesis mechanism.


title:
Simple circuit theory and the solution of two electricity problems from
  the Victorian Age

abstract:
  Two problems from the Victorian Age, the subdivision of light and the
determination of the leakage point in an undersea telegraphic cable are
discussed and suggested as a concrete illustrations of the relationships
between textbook physics and the real world. Ohm's law and simple algebra are
the only tools we need to discuss them in the classroom.


title:
Effective Hamiltonians for state selection in Heisenberg
  antiferromagnets

abstract:
  In frustrated antiferromagnets with isotropic exchange interactions, there is
typically a manifold of degenerate classical ground states. This degeneracy is
broken by the (free) energy of quantum or thermal fluctuations, or the uniform
effects of bond disorder. We derive effective Hamiltonians to express each kind
of selection effect, in both exact forms and convenient approximate forms. It
is argued that biquadratic terms, representing the collinear-selecting effects
of quantum fluctuations, should be included in classical simulations of
large-$S$ frustrated magnets at low temperatures


title: Pathways to testable leptogenesis

abstract:
  In the conventional seesaw models of neutrino masses, leptogenesis occurs at
a very high scale. Three approaches have been discussed in the literature to
lower the scale of leptogenesis: mass degeneracy, hierarchy of couplings and
three-body decays. We advocate yet another approach to a testable leptogenesis,
whereby the decaying particles could go out of equilibrium at an accessible
scale due to kinematics, although their couplings to the decay products are
larger for generating a desired CP asymmetry. We demonstrate this new
possibility for the testable leptogenesis in a two Higgs doublet model where
the neutrino masses originate from a one-loop diagram.


title:
Synchrony parameter dependent transformation equations and some of their
  particular values - Kinematics

abstract:
  We show that alternative relativity theories that are essentially based on
varied distant clock synchronization procedures can be recovered by using the
standard Lorentz-Einstein transformations for the space-time coordinates of the
same event. Through this approach we offer modest support for the Rizzi et al.
stating that: "Once correctly and explicitly phrased, the principles of special
relativity theory allow for a wide range of theories that differ from the
standard Einstein's theory only for the difference in the chosen
synchronization procedure, but are wholly equivalent to special relativity
theory in predicting empirical facts." Our approach requires of the reader no
more then a correct understanding of the physics behind the Lorentz-Einstein
transformations equations which we use.


title: Isomorphism of Hilbert modules over stably finite C*-algebras

abstract:
  It is shown that if A is a stably finite C*-algebra and E is a countably
generated Hilbert A-module, then E gives rise to a compact element of the Cuntz
semigroup if and only if E is algebraically finitely generated and projective.
It follows that if E and F are equivalent in the sense of Coward, Elliott and
Ivanescu (CEI) and E is algebraically finitely generated and projective, then E
and F are isomorphic. In contrast to this, we exhibit two CEI-equivalent
Hilbert modules over a stably finite C*-algebra that are not isomorphic.


title: The Complexity of Propositional Implication

abstract:
  The question whether a set of formulae G implies a formula f is fundamental.
The present paper studies the complexity of the above implication problem for
propositional formulae that are built from a systematically restricted set of
Boolean connectives. We give a complete complexity classification for all sets
of Boolean functions in the meaning of Post's lattice and show that the
implication problem is efficentily solvable only if the connectives are
definable using the constants {false,true} and only one of {and,or,xor}. The
problem remains coNP-complete in all other cases. We also consider the
restriction of G to singletons.


title: Change in Order of Phase Transitions on Fractal Lattices

abstract:
  We re-examine a population model which exhibits a continuous absorbing phase
transition which belongs to directed percolation in 1+1 dimensions and a first
order transition in 2+1 dimensions and above. Studying the model on fractal
lattices, we examine at what fractal dimension 1<d_f<2, the change in order
occurs. As well as commenting on the order of the transitions, we produce
estimates for the critical points and, for continuous transitions, some
critical exponents.


title: A generalization of Abel's Theorem and the Abel--Jacobi map

abstract:
  We generalize Abel's classical theorem on linear equivalence of divisors on a
Riemann surface. For every closed submanifold $M^d \subset X^n$ in a compact
oriented Riemannian $n$--manifold, or more generally for any $d$--cycle $Z$
relative to a triangulation of $X$, we define a (simplicial) $(n-d-1)$--gerbe
$\Lambda_{Z}$, the Abel gerbe determined by $Z$, whose vanishing as a Deligne
cohomology class generalizes the notion of `linear equivalence to zero'. In
this setting, Abel's theorem remains valid. Moreover we generalize the
classical Inversion Theorem for the Abel--Jacobi map, thereby proving that the
moduli space of Abel gerbes is isomorphic to the harmonic Deligne cohomology;
that is, gerbes with harmonic curvature.


title: Liouville Theorem for Dunkl Polyharmonic Functions

abstract:
  Assume that $f$ is Dunkl polyharmonic in $\mathbb{R}^n$ (i.e. $(\Delta_h)^p
f=0$ for some integer $p$, where $\Delta_h$ is the Dunkl Laplacian associated
to a root system $R$ and to a multiplicity function $\kappa$, defined on $R$
and invariant with respect to the finite Coxeter group). Necessary and
successful condition that $f$ is a polynomial of degree $\le s$ for $s\ge 2p-2$
is proved. As a direct corollary, a Dunkl harmonic function bounded above or
below is constant.


title:
Next-to-Leading-Order QCD corrections to J/\psi(\Upsilon)+\gamma
  production at the LHC

abstract:
  In this work, we calculate the next-to-leading-order (NLO) QCD corrections to
the process $p+p \to J/\psi + \gamma$ via the color-singlet mechanism at the
LHC. The results show that the partial cross section ($p_t^{J/\psi}>$3GeV and
$|y^{J/\psi,\gamma}|<$3) is enhanced by a factor of about 2.0, and the
differential cross section can be enhanced by two orders of magnitude in the
large transverse momentum region of $J/\psi$. Furthermore, the polarization of
$J/\psi$ changes from transverse polarization at leading-order to longitudinal
polarization at NLO. For the inclusive $J/\psi$ hadroproduction, it is known
that the color-octet contributions are one order of magnitude larger than the
color-singlet contribution, and the polarization distribution is dominated by
the color-octet behavior at NLO. In contrast, for $J/\psi+\gamma$ production
the color-singlet contribution is of the same order as the color-octet
contribution, and the polarization distribution arises from both the
color-singlet and color-octet. Therefore, measurements of $J/\psi$ production
associated with a direct photon at the hadron collider could be an important
supplement to testify the theoretical framework treating with the heavy
quarkonium. In addition, an NLO QCD correction to $\Upsilon+\gamma$ production
at the LHC is also presented in this paper.


title: One useful logic that defines its own truth

abstract:
  Existential fixed point logic (EFPL) is a natural fit for some applications,
and the purpose of this talk is to attract attention to EFPL. The logic is also
interesting in its own right as it has attractive properties. One of those
properties is rather unusual: truth of formulas can be defined (given
appropriate syntactic apparatus) in the logic. We mentioned that property
elsewhere, and we use this opportunity to provide the proof.


title: Regular Moebius transformations of the space of quaternions

abstract:
  Let H be the real algebra of quaternions. The notion of regular function of a
quaternionic variable recently presented by G. Gentili and D. C. Struppa
developed into a quite rich theory. Several properties of regular quaternionic
functions are analogous to those of holomorphic functions of one complex
variable, although the diversity of the quaternionic setting introduces new
phenomena. This paper studies regular quaternionic transformations. We first
find a quaternionic analog to the Casorati-Weierstrass theorem and prove that
all regular injective functions from H to itself are affine. In particular, the
group Aut(H) of biregular functions on H coincides with the group of regular
affine transformations. Inspired by the classical quaternionic linear
fractional transformations, we define the regular fractional transformations.
We then show that each regular injective function from the Alexandroff
compactification of H to itself is a regular fractional transformation.
Finally, we study regular Moebius transformations, which map the unit ball B
onto itself. All regular bijections from B to itself prove to be regular
Moebius transformations.


title: A Refinement of the Function $g(m)$ on Grimm Conjecture

abstract:
  In this paper, we refine the function $g(x)$ on Grimm's conjecture and
improve a result of Erd\"{o}s and Selfridge without using Hall's theorem.


title:
Shedding Light on Dark Matter: A Faraday Rotation Experiment to Limit a
  Dark Magnetic Moment

abstract:
  A Faraday rotation experiment can set limits on the magnetic moment of a
electrically-neutral, dark-matter particle, and the limits increase in
stringency as the candidate-particle mass decreases. Consequently, if we assume
the dark-matter particle to be a thermal relic, our most stringent constraints
emerge at the keV mass scale. We discuss how such an experiment could be
realized and determine the limits on the magnetic moment as a function of mass
which follow given demonstrated experimental capacities.


title: Between Right and Left Handed Media

abstract:
  We report analytical calculations for the propagation of electromagnetic
radiation through an inhomogeneous layer whose refractive index varies in one
dimension situated between bulk right- and left-handed media. Significant field
localization is generated in the layer that is caused by the coherent
superposition of evanescent waves. The strength of the field localization and
the transmission properties of the layer are investigated as a function of the
layer width, losses and defects in the refractive index; the former two being
modelled by continuous changes, and the latter by discontinuous changes, in the
index profile.


title: TMD PDF's: gauge invariance, RG properties and Wilson lines

abstract:
  The UV divergences associated with transverse-momentum dependent (TMD) parton
distribution functions (PDF) are calculated together with the ensuing one-loop
anomalous dimensions in the light-cone gauge. Time-reversal-odd effects in the
anomalous dimensions are observed and the role of Glauber gluons is discussed.
A generalized renormalization procedure of TMD PDFs is proposed, relying upon
the renormalization of contour-dependent operators with obstructions.


title: Possible Minkowskian Language in Two-level Systems

abstract:
  One hundred years ago, in 1908, Hermann Minkowski completed his proof that
Maxwell's equations are covariant under Lorentz transformations. During this
process, he introduced a four-dimensional space called the Minkowskian space.
In 1949, P. A. M. Dirac showed the Minkowskian space can be handled with the
light-cone coordinate system with squeeze transformations. While the squeeze is
one of the fundamental mathematical operations in optical sciences, it could
serve useful purposes in two-level systems. Some possibilities are considered
in this report. It is shown possible to cross the light-cone boundary in
optical and two-level systems while it is not possible in Einstein's theory of
relativity.


title: Mining Complex Hydrobiological Data with Galois Lattices

abstract:
  We have used Galois lattices for mining hydrobiological data. These data are
about macrophytes, that are macroscopic plants living in water bodies. These
plants are characterized by several biological traits, that own several
modalities. Our aim is to cluster the plants according to their common traits
and modalities and to find out the relations between traits. Galois lattices
are efficient methods for such an aim, but apply on binary data. In this
article, we detail a few approaches we used to transform complex
hydrobiological data into binary data and compare the first results obtained
thanks to Galois lattices.


title:
Stochastic modeling of chaotic masonry via mesostructural
  characterization

abstract:
  The purpose of this study is to explore three numerical approaches to the
elastic homogenization of disordered masonry structures with moderate
meso/macro-lengthscale ratio. The methods investigated include a representative
of perturbation methods, the Karhunen-Lo\`{e}ve expansion technique coupled
with Monte-Carlo simulations and a solver based on the Hashin-Shtrikman
variational principles. In all cases, parameters of the underlying random field
of material properties are directly derived from image analysis of a real-world
structure. Added value as well as limitations of individual schemes are
illustrated by a case study of an irregular masonry panel.


title: Fluctuation theorems in driven open quantum systems

abstract:
  The characteristic function for the joint measurement of the changes of two
commuting observables upon an external forcing of a quantum system is derived.
In particular, the statistics of the internal energy, the exchanged heat and
the work of a quantum system that {\it weakly} couples to its environment is
determined in terms of the energy changes of the system and the environment due
to the action of a classical, external force on the system. If the system and
environment initially are in a canonical equilibrium, the work performed on the
system is shown to satisfy the Tasaki-Crooks theorem and the Jarzynski
equality.


title: Invisible $Z\prime$ as a probe of extra dimensions at the CERN LHC

abstract:
  A class of extra dimensional models with a warped metric predict tunneling of
a massive particle localized on our brane and escaping into additional
dimensions. The experimental signature of this effect is the disappearance of
the particle from our world, i.e. the particle $\to invisible$ decay. We point
out that measurements of $Z\prime \to invisible$ decay width of a new heavy
gauge boson $Z\prime$ at the CERN LHC can be effectively used to probe the
existence of large extra dimensions. This result enhances motivations for a
more sensitive search and study for this decay mode and suggests additional
direction for testing extra dimensions in collider experiments.


title: The accretion powered spin-up of GRO J1750-27

abstract:
  The timing properties of the 4.45 s pulsar in the Be X-ray binary system GRO
J1750-27 are examined using hard X-ray data from INTEGRAL and Swift during a
Type II outburst observed during 2008. The orbital parameters of the system are
measured and agree well with those found during the last known outburst of the
system in 1995. Correcting the effects of the doppler shifting of the period,
due to the orbital motion of the pulsar, leads to the detection of an intrinsic
spin-up that is well described by a simple model including Pdot and Pdotdot
terms of -7.5E-10 ss^-1 and 1E-16 ss^-2 respectively. The model is then used to
compare the time-resolved variation of the X-ray flux and intrinsic spin-up
against the accretion torque model of Ghosh & Lamb (1979); this finds that GRO
J1750-27 is likely located 12-22 kpc distant and that the surface magnetic
field of the neutron star is ~2E12 G. The shape of the pulse and the pulsed
fraction shows different behaviour above and below 20 keV indicating that the
observed pulsations are the convolution of many complex components.


title:
Nonlinear Bethe-Heitler pair creation with attosecond laser pulses at
  the LHC

abstract:
  The creation of lepton pairs ($e^+e^-$ and $\mu^+\mu^-$) via multiphoton
absorption in collisions of ultrarelativistic ion beams with ultrashort
high-frequency laser pulses is considered. Both the free and the bound-free
production channels are addressed, where in the latter case the negatively
charged lepton is created in a bound atomic state. It is shown that these
nonlinear QED processes are observable when a table-top source of intense xuv
or x-ray laser radiation is operated in conjunction with the LHC. We discuss
the relative effectiveness of protons versus Pb ions and specify for each pair
production channel the most suitable collision system.


title:
Two Forms of One Useful Logic: Existential Fixed Point Logic and Liberal
  Datalog

abstract:
  A natural liberalization of Datalog is used in the Distributed Knowledge
Authorization Language (DKAL). We show that the expressive power of this
liberal Datalog is that of existential fixed-point logic. The exposition is
self-contained.