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arXiv 2004.04619quant-phcond-mat.stat-mech
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酉非马尔可夫量子演化中的不可逆性缓解

Irreversibility mitigation in unital non-Markovian quantum evolutions

Stefano Gherardini, Stefano Marcantoni, Filippo Caruso

摘要:

热力学熵产生与非马尔可夫演化之间的关系是当前的研究热点。本文研究了开放量子系统在单位非马尔可夫动力学下的随机熵产生行为。特别是,对于泡利通道的家庭,我们表明,在某些特定的时间间隔的平均熵产生和方差可以减少,提供的量子动力学不能是P-可分的。虽然系统的动力学是整体不可逆的,我们的结果可以被解释为一个短暂的趋势,可逆性,描述为一个三角洲峰值分布的熵产生约为零。最后,我们还提供了分析界的参数产生的量子系统动力学,以确保相应的非马尔可夫演化的不可逆缓解。

英文摘要:

The relation between the thermodynamic entropy production and non-Markovian evolutions is matter of current research. Here, we study the behavior of the stochastic entropy production in open quantum systems undergoing unital non-Markovian dynamics. In particular, for the family of Pauli channels we show that in some specific time intervals both the average entropy production and the variance can decrease, provided that the quantum dynamics fails to be P-divisible. Although the dynamics of the system is overall irreversible, our result may be interpreted as a transient tendency towards reversibility, described as a delta peaked distribution of entropy production around zero. Finally, we also provide analytical bounds on the parameters in the generator giving rise to the quantum system dynamics, so as to ensure irreversibility mitigation of the corresponding non-Markovian evolution.

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。

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