Pairwise entanglement in symmetric multi-qubit systems
量子物理
2009-11-07 v1
摘要
The concurrence, a quantitative measure of the entanglement between a pair of particles, is determined for the case where the pair is extracted from a symmetric state of N two-level systems. Examples are given for both pure and mixed states of the N-particle system, and for a pair extracted from two ensembles with correlated collective spins.
引用
@article{arxiv.quant-ph/0106145,
title = {Pairwise entanglement in symmetric multi-qubit systems},
author = {Xiaoguang Wang and Klaus Molmer},
journal= {arXiv preprint arXiv:quant-ph/0106145},
year = {2009}
}
备注
7 pages, 3 figures