We examine energy exchange between two quantum systems, which are initially in canonical equilibrium states at different temperatures, through a coupling that allows particle transfer. We find the entropy production and information-theoretic quantities that govern the energy exchange and discuss the difference from when the coupling preserves the number of particles in each system. We take a specific system of spinless fermions and exemplify the role of coupling, the aspect of energy exchange, and the involved entropy productions.

中文翻译：

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通过在规范初始状态之间转移量子粒子来产生熵和能量交换

我们通过允许粒子转移的耦合来检查两个量子系统之间的能量交换，这两个系统最初在不同温度下处于规范平衡状态。我们找到了控制能量交换的熵产生和信息论量，并讨论了与耦合保持每个系统中粒子数量时的区别。我们采用一个特定的无自旋费米子系统，并举例说明耦合的作用、能量交换的方面以及所涉及的熵产生。