开放量子系统中对称性诱导的涨落关系
Symmetry-induced fluctuation relations in open quantum systems
摘要：
我们导出了一个获得开放量子系统中动力学观测量量子涨落关系的一般方案。具体来说，我们考虑马尔可夫非幺正动力学的量子跳跃轨迹方面解开，并利用大偏差理论的技术，如倾斜系综和Doob变换。我们的结果在这里推广到开放量子系统波动关系先前获得的经典马尔可夫系统，并添加到大量的文献中的波动关系的量子域，但没有诉诸标准的两点测量计划。我们用三个例子来说明我们的发现，以突出和讨论我们的一般结果的主要特点。
英文摘要：
We derive a general scheme to obtain quantum fluctuation relations for dynamical observables in open quantum systems. For concreteness we consider Markovian non-unitary dynamics that is unraveled in terms of quantum jump trajectories, and exploit techniques from the theory of large deviations like the tilted ensemble and the Doob transform. Our results here generalise to open quantum systems fluctuation relations previously obtained for classical Markovian systems, and add to the vast literature on fluctuation relations in the quantum domain, but without resorting to the standard two-point measurement scheme. We illustrate our findings with three examples in order to highlight and discuss the main features of our general result.
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