Quantum entanglement in fermionic lattices

The Fock space of a system of indistinguishable particles is isomorphic (in a nonunique way) to the state space of a composite, i.e., many modes, quantum system. One can then discuss quantum entanglement for fermionic as well as bosonic systems. We exemplify the use of this notion-central in quantum information-by studying some, e.g., Hubbard, lattice fermionic models relevant to condensed matter physics.