Recent interest in aspects common to quantum information and condensed matter has
prompted a flurry of activity at the border of these disciplines that were far distant until a few …

Quantum information theory has considerably helped in the understanding of quantum many-
body systems. The role of quantum correlations and in particular, bipartite entanglement …

We review recent developments in the physics of ultracold atomic and molecular gases in
optical lattices. Such systems are nearly perfect realisations of various kinds of Hubbard …

We compute the quantum correlation [quantum discord (QD)] and the entanglement (EOF)
between nearest-neighbor qubits (spin-1/2) in an infinite chain described by the Heisenberg …

We introduce an intuitive measure of genuine multipartite entanglement, which is based on
the well-known concurrence. We show how lower bounds on this measure can be derived …

We find an algebraic formula for the N-partite concurrence of N qubits in an X matrix. X
matrices are density matrices whose only nonzero elements are diagonal or antidiagonal …

Flavor oscillations in elementary particle physics are related to multimode entanglement of
single-particle states. We show that mode entanglement can be expressed in terms of flavor …

We study the ground state properties of the one-dimensional extended Hubbard model at
half filling from the perspective of its particle reduced density matrix. We focus on the …

We derive a general relation between the nonanalyticities of the ground state energy and
those of a subclass of the multipartite generalized global entanglement (GGE) measure …

We introduce a class of generalized geometric measures of entanglement. For pure
quantum states of N elementary subsystems, they are defined as the distances from the sets …