Irreversibility at zero temperature from the perspective of the environment

Irreversibility at zero temperature from the perspective of the environment
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从环境的角度来看零温度下的不可逆性

DOI:
10.1103/physreva.97.050101
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发表时间:
2018
期刊:
影响因子:
2.9
通讯作者:
M. Paternostro
M. Paternostro
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Jader P. Santos;A. L. D. Paula;R. Drumond;G. Landi;M. Paternostro

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从环境的角度讨论了开放量子系统非平衡过程中熵产生的出现。通过使用类似于Stinespring定理的基于膨胀的方法,我们推导出包含两个基本贡献的熵产生的表达式。第一个是与系统和环境之间的相关性的创建速度,而第二个突出了环境根据其与系统的耦合来修改其状态的可能性。这两项都与系统和环境中的不可逆电流有关,这指出了马尔可夫极限中不可逆性的出现。最后,我们讨论了如何在熵产生的研究中的角度的变化有丰富的影响,非马尔可夫开放系统动力学的研究。
We address the emergence of entropy production in the non-equilibrium process of an open quantum system from the viewpoint of the environment. By making use of a dilation-based approach akin to Stinespring theorem, we derive an expression for the entropy production that comprises two fundamental contributions. The first is linked to the rate of creation of correlations between system and environment whereas the second highlights the possibility for the environment to modify its state in light of its coupling to the system. Both terms are shown to be associated with irreversible currents within the system and the environment, which pinpoint the emergence of irreversibility in the Markovian limit. Finally, we discuss how such a change of perspective in the study of entropy production has fecund implications for the study of non-Markovian open-system dynamics.
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