Entanglement oscillations in open Heisenberg chains
Quantum Physics
2009-11-13 v1
Abstract
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.
Keywords
Cite
@article{arxiv.quant-ph/0607117,
title = {Entanglement oscillations in open Heisenberg chains},
author = {Ting Wang and Xiaoguang Wang and Zhe Sun},
journal= {arXiv preprint arXiv:quant-ph/0607117},
year = {2009}
}
Comments
5 pages, 4 figures