Entangling power of permutation-invariant quantum states
Journal Article
·
· Physical Review. A
- Institut fuer Theoretische Physik, Universitaet zu Koeln, Zuelpicher Strasse 77, 50937 Cologne(Germany)
We investigate the von Neumann entanglement entropy as function of the size of a subsystem for permutation invariant ground states in models with finite number of states per site, e.g., in quantum spin models. We demonstrate that the entanglement entropy of n sites in a system of length L generically grows as {sigma} log{sub 2}[2{pi}en(L-n)/L]+C, where {sigma} is the on-site spin and C is a function depending only on magnetization.
- OSTI ID:
- 20718513
- Journal Information:
- Physical Review. A, Vol. 72, Issue 3; Other Information: DOI: 10.1103/PhysRevA.72.032327; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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