Stability of Pairwise Entanglement in a Decoherent Environment
Quantum Physics
2007-05-23 v2
Abstract
Consider the dynamics of a two-qubit entangled system in the decoherence environment, we investigate the stability of pairwise entanglement under decoherence. We find that for different decoherence models, there exist some special class of entangled states of which the pairwise entanglement is the most stable. The lifetime of the entanglement in these states is larger than other states with the same initial entanglement. In addition, we also investigate the dynamics of pairwise entanglement in the ground state of spin models such as Heisenberg and XXY models.
Cite
@article{arxiv.quant-ph/0507021,
title = {Stability of Pairwise Entanglement in a Decoherent Environment},
author = {Jian-Ming Cai and Zheng-Wei Zhou and Guang-Can Guo},
journal= {arXiv preprint arXiv:quant-ph/0507021},
year = {2007}
}
Comments
accepted by Physical Review A, references updated and minor changes