置换操作下的不对称激活及其与相干性的关系
量子物理
2024-11-13 v3
摘要
Dicke 态及其退相干态对置换是不变的。然而,当将另一量子比特态分别附加到它们之上时,整体态对置换不再不变,并具有某种置换不对称性。不对称的程度可由群作用下的可区分态数目或互信息来度量。一般而言,整体态的不对称量大于所添加态的不对称量。即,此情形下发生了不对称激活。本文研究 Dicke 态下的不对称激活量。为渐近地处理不对称激活,我们利用超几何函数的若干公式引入了一类新的中心极限定理。我们揭示,在特定类型的极限下,带有 Dicke 态的不对称量及不对称激活量比带有退相干态的情形具有严格更高的阶。
引用
@article{arxiv.2311.10307,
title = {Asymmetry activation and its relation to coherence under permutation operation},
author = {Masahito Hayashi},
journal= {arXiv preprint arXiv:2311.10307},
year = {2024}
}
备注
The paper arXiv:2104.12635v1 was divided into three parts. This paper is an extended version of the third part of arXiv:2104.12635v1. The second part was posted as arXiv:2104.12635v2, and the first part was posted as arXiv:2311.09992. arXiv admin note: text overlap with arXiv:2104.12635