We study the pairwise entanglement close to separable ground states of a class of one-
dimensional quantum spin models. At T= 0 we find that such ground states separate regions …

We consider a set of fully connected spin models that display first-or second-order
transitions and for which we compute the ground-state entanglement in the …

We analyze correlations between subsystems for an extended Hubbard model exactly
solvable in one dimension, which exhibits a rich structure of quantum phase transitions …

We analyze the statistical properties of the entanglement of a large bipartite quantum
system. By framing the problem in terms of random matrices and a fictitious temperature, we …

We analyze the bipartite and multipartite entanglement for the ground state of the one-
dimensional XY model in a transverse magnetic field in the thermodynamical limit. We …

We review some of the recent progress on the study of entropy of entanglement in many-
body quantum systems. Emphasis is placed on the scaling properties of entropy for one …

We study the relation between entanglement and quantum chaos in one-and two-
dimensional spin-1∕ 2 lattice models, which exhibit mixing of the noninteracting …

We analyze the XY model characterized by an anisotropy γ in an external magnetic field, h,
with respect to its genuine multipartite entanglement content (in the thermodynamic and …

We provide insight into the quantum correlations structure present in strongly correlated
systems beyond the standard framework of bipartite entanglement. To this aim we first …

We investigate the scaling of the entanglement spectrum and of the Rényi block entropies
and determine its universal aspects in the ground state of critical and noncritical one …