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 log22enL−n /L+C, where is the on-site spin and C is a function depending only on magnetization.
Titolo: | Entangling power of permutation invariant quantum states | |
Autori: | ||
Data di pubblicazione: | 2005 | |
Rivista: | ||
Abstract: | 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 log22enL−n /L+C, where is the on-site spin and C is a function depending only on magnetization. | |
Handle: | http://hdl.handle.net/11386/1063826 | |
Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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