Entanglement oscillations in open Heisenberg chains

Details Entanglement oscillations in open Heisenberg chains Entanglement oscillations in open Heisenberg chains

2006-07-18

arxiv.org/abs/quant-ph/0607117v1

Physics

Quantum Physics

5 pages, 4 figures

Scientific paper

10.1016/j.physa.2007.04.100

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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