Entanglement oscillations in open Heisenberg chains

We study pairwise entanglements in spin-half and spin-one Heisenberg chains with an open boundary condition, respectively. We find out that the ground-state and the first-excited-state entanglements are equal for the three-site spin-one chain. When the number of sites L>3, the concurrences and negativities display oscillatory behaviors, and the oscillations of the ground-state and the first-excited-state entanglements are out of phase or in phase.

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Year of publication:	2007
Authors:	Wang, Ting ; Wang, Xiaoguang ; Sun, Zhe
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 383.2007, 2, p. 316-324
Publisher:	Elsevier
Subject:	Entanglement \| Heisenberg chain

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

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