中文

纯二分体态与完全混合态之间的渐近局部假设检验

量子物理 2020-10-06 v2

摘要

本文研究了在单向LOCC、双向LOCC和可分离POVM下,任意固定二分纯态与完全混合态之间的渐近假设检验(或具有非对称误差处理的态区分)。结果,我们推导了在单向LOCC、双向LOCC和可分离POVM下Stein引理类型的最优误差指数的单字母化公式,在单向LOCC POVM和可分离POVM下的Chernoff界,以及在参数整个区域下单向LOCC POVM和参数受限区域下可分离POVM的Hoeffding界。我们还数值计算了低维系统中一类三步LOCC协议下的Chernoff和Hoeffding界,并表明这些界不仅优于单向LOCC POVM的界,而且在可分离POVM解析界导出的参数区域内几乎逼近可分离POVM的界。

关键词

引用

@article{arxiv.1105.3789,
  title  = {Asymptotic local hypothesis testing between a pure bipartite state and the completely mixed state},
  author = {Masaki Owari and Masahito Hayashi},
  journal= {arXiv preprint arXiv:1105.3789},
  year   = {2020}
}

备注

The presentation was thoroughly revised, and the detail analysis about the optimal two-way LOCC POVM was added. 22pages, 4 figures, accepted by Phys. Rev. A