Phys. Rev. A 65, 042101 (2002) [5 pages]Quantum entanglement in fermionic lattices |
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Paolo Zanardi
Institute for Scientific Interchange Foundation, Viale Settimio Severo 65, I-10133 Torino, Italy
Unità INFM, Politecnico di Torino, Corso Duca degli Abruzzi 24, I-10129 Torino, Italy
Received 7 May 2001; published 14 March 2002
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.
©2002 The American Physical Society
URL: http://link.aps.org/abstract/PRA/v65/e042101
DOI: 10.1103/PhysRevA.65.042101
PACS: 03.65.Ud, 71.10.Fd
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