arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1108.0263quant-phmath-phmath.MP
收藏

多体量子态违反Bell型不等式的上界

Upper bounds on violation of Bell-type inequalities by a multipartite quantum state

Elena R. Loubenets

摘要:

本文给出了广义N-量子比特GHZ态、N-量子比特GHZ态以及任意N-体量子态(可能是无限维)的最大Bell破坏的新的精确上界.我们的结果表明,对于任意Hilbert空间维数的N分量子态,在S设置和任意数量的结果下,任何Bell型不等式(无论是关于关联函数还是关于联合概率)的破坏都不会超过(2S-1)^{N-1}。

英文摘要:

We present the new exact upper bounds on the maximal Bell violation for the generalized N-qubit GHZ state, the N-qudit GHZ state and, in general, for an arbitrary N-partite quantum state, possibly infinite-dimensional. Our results indicate that, for an N-partite quantum state of any Hilbert space dimension, violation of any Bell-type inequality (either on correlation functions or on joint probabilities) with S settings and any number of outcomes at each site cannot exceed (2S-1)^{N-1}.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑