Quantum coherence and entanglement under the influence of decoherence

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-06 DOI:10.1088/1612-202x/ad2dc8

Wen-Yang Sun, A-Min Ding, Juan He, Jiadong Shi, Le Wang, Hui-Fang Xu, Dong Wang, Liu Ye

引用次数: 0

Abstract

In this work, we delve into the dynamic traits of the relative entropy of quantum coherence (REQC) as the quantum system interacts with the different noisy channels, drawing comparisons with entanglement (concurrence). The research results demonstrate the broader prevalence and stronger robustness of the REQC as opposed to concurrence. It’s worth noting that the bit flip channel cannot uphold a constant nonzero frozen the REQC, besides, the concurrence follows a pattern of temporary reduction to zero, followed by recovery after a certain time span. More importantly, the REQC maintains its presence consistently until reaching a critical threshold, whereas concurrence experiences completely attenuation to zero under the influence of phase damping and amplitude damping channels.

查看原文本刊更多论文

退相干影响下的量子相干和纠缠

在这项工作中，我们深入研究了量子系统与不同噪声信道相互作用时量子相干相对熵（REQC）的动态特征，并将其与纠缠（并发）进行了比较。研究结果表明，与并发性相比，相对量子相干熵（REQC）具有更广泛的普遍性和更强的稳健性。值得注意的是，在 REQC 中，比特翻转信道不能保持恒定的非零冷冻，此外，并发性遵循暂时降低为零，然后在一定时间跨度后恢复的模式。更重要的是，REQC 在达到临界阈值之前会持续存在，而在相位阻尼和振幅阻尼通道的影响下，并发性会完全衰减为零。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.