arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1509.04592quant-ph
收藏

相干性与路径信息的关系

Relations between coherence and path information

Emilio Bagan, Janos A. Bergou, Seth S. Cottrell, Mark Hillery

摘要:

在多光路干涉仪中,我们发现了相干性与光路信息之间的两种关系。第一个建立在早期的结果为两个路径干涉仪,它使用最小的检测器状态之间的误差状态歧视提供的路径信息。对于可见性,这是在两个路径的情况下,我们取代最近定义的$l_{1}$措施的量子相干性。第二种是熵关系,其中路径信息的特征在于检测器状态和对它们执行的测量的结果之间的互信息,并且相干性度量是基于相对熵的度量。

英文摘要:

We find two relations between coherence and path-information in a multi-path interferometer. The first builds on earlier results for the two-path interferometer, which used minimum-error state discrimination between detector states to provide the path information. For visibility, which was used in the two-path case, we substitute a recently defined $l_{1}$ measure of quantum coherence. The second is an entropic relation in which the path information is characterized by the mutual information between the detector states and the outcome of the measurement performed on them, and the coherence measure is one based on relative entropy.

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。

↑