论文标题
随机浮标量子热发动机和随机效率
Stochastic Floquet quantum heat engines and stochastic efficiencies
论文作者
论文摘要
基于量子轨迹的概念，我们提出了浮量量子热发动机的随机理论框架。作为一种应用，研究了两种类型的随机效率的大偏差函数，以进行两级浮量量子热发动机。我们发现，一个效率的统计数据与Verley等人开发的普遍效率波动理论的预测非常吻合。 [物理。 Rev. e {\ bf 90}，052145（2014）]，而其他效率的统计数据却没有。这种差异的原因归因于缺乏后一种效率的波动定理。
Based on the notion of quantum trajectory, we present a stochastic theoretical framework for Floquet quantum heat engines. As an application, the large deviation functions of two types of stochastic efficiencies for a two-level Floquet quantum heat engine are investigated. We find that the statistics of one efficiency agree well with the predictions of the universal theory of efficiency fluctuations developed by Verley et al. [Phys. Rev. E {\bf 90}, 052145 (2014)], whereas the statistics of the other efficiency do not. The reason for this discrepancy is attributed to the lack of fluctuation theorems for the latter type of efficiency.
