We see that $T_{\rm g}(p)$ increases for increasing $p$.

In Fig. \[f6\]b we replot our data vs the scaled temperature $tL^{1/\nu}$, where the critical exponent $\nu$ has been chosen for each $p$ so as to give the best data collapse to a common scaling curve for the different system sizes $L$, in accordance with the scaling equation of Eq. (\[eUpsScale\]). For the two largest values $p=0.4$ and $0.55$ we find $\nu\sim 1.5$, in agreement with the more precise calculations of Olsson. For the smallest $p=0.3$, we find a smaller $\nu\sim 1.3$. We believe that for this last case, where our data (see Fig. \[f6\]a) is the noisiest and as $T_{\rm g}$ is the smallest we have the least data at $T<T_{\rm g}$, the fact that we are closest to the vortex lattice melting transition may mean that our system sizes are still too small and so we are in a cross-over region rather than the true large $L$ scaling limit.

=8.6truecm

The existence of a vortex glass phase in the bond disordered 3D uniformly frustrated XY model has also been claimed in simulations by Kawamura,[@Kawamura0; @Kawamura] who in addition to measuring a value $\nu=1.1\pm 0.2$ also measures the critical exponent 