\[Sresults\] we present our results. In Sec. \[Ssummary\] we summarize and discuss future perspectives.

The correlated Hamiltonian {#ScorrH}
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In this work we employ a correlated interaction constructed within the unitary correlation operator method (UCOM), based on the Argonne V18 [@WSS1995] nucleon-nucleon (NN) interaction. Here we outline the basic principles of the UCOM scheme [@FNR1998; @NeF2003; @RNH2004; @RHP2005]. More detailed yet compact descriptions of the method can be found in Refs. [@RPP2006; @PPH2006].

The basic idea is the explicit treatment of the interaction-induced short-range central and tensor correlations. These are imprinted into an uncorrelated many-body state $|\Psi\rangle$ (e.g., a Slater determinant) through a state-independent unitary transformation defined by the unitary correlation operator $C$, resulting in a correlated state $|\tilde{\Psi}\rangle$, $$|\tilde{\Psi}\rangle = C |\Psi\rangle .$$ The correlation operator $C$ is written as a product of unitary operators $C_{\Omega}$ and $C_{r}$ describing tensor and central correlations, respectively. Both are formulated as exponentials of a Hermitian generator, $$\label{eq:correlator}
  C = C_{\Omega} C_{r}
  = \exp [-\text{i} \sum_{i<j} g_{\Omega,ij} ]
    \exp [-\text{i} \sum_{i<j} g_{r,ij} ].$$ The construction of the two-body generators $g_r$ and $g_{\Omega}$ follows the physical mechanisms by which the interaction induces central and tensor correlations. The short-range central correlations, caused by the repulsive 