Physics – Quantum Physics
Scientific paper
2007-03-06
Rev.Mod.Phys.80:517-576,2008
Physics
Quantum Physics
61 pages, 29 figures
Scientific paper
10.1103//RevModPhys.80.517
The recent interest in aspects common to quantum information and condensed matter has prompted a prosperous activity at the border of these disciplines that were far distant until few years ago. Numerous interesting questions have been addressed so far. Here we review an important part of this field, the properties of the entanglement in many-body systems. We discuss the zero and finite temperature properties of entanglement in interacting spin, fermionic and bosonic model systems. Both bipartite and multipartite entanglement will be considered. At equilibrium we emphasize on how entanglement is connected to the phase diagram of the underlying model. The behavior of entanglement can be related, via certain witnesses, to thermodynamic quantities thus offering interesting possibilities for an experimental test. Out of equilibrium we discuss how to generate and manipulate entangled states by means of many-body Hamiltonians.
Amico Luigi
Fazio Rosario
Osterloh Andreas
Vedral Vlatko
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