arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.05050quant-phcond-mat.stat-mech
收藏

量子关联与各态历经

Quantum correlations and ergotropy

Gianluca Francica

摘要:

理解经典关联和量子关联在功提取中的作用是热力学中一个非常重要的问题。我们通过考虑在封闭量子系统中,可提取的最大循环功等于各态历经来处理这个问题。因此,我们的目标是确定和调查的贡献遍历来自不同类型的初始相关(总,经典,不和谐和纠缠相关)。在此基础上,我们引入并研究了基于遍历性的相关性量词。特别是,我们的研究结果表明,只有不和谐的相关总是给一个积极的贡献,工作提取,而总,经典和纠缠相关可以减少工作提取。

英文摘要:

Understanding the role of classical and quantum correlations in work extraction is a problem of fundamental importance in thermodynamics. We approach this problem by considering that, in closed quantum systems, the maximum cyclic work extractable is equal to the ergotropy. Thus, we aim to identify and investigate the contributions to the ergotropy coming from different kinds of initial correlations (total, classical, discord and entanglement correlations). By doing so, we have introduced and studied quantifiers of correlations which are based on ergotropy. In particular, our results suggest that only discord correlations always give a positive contribution to work extraction, while total, classical and entanglement correlations can reduce the work extraction.

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。

↑