论文标题
交换波动定理,以强烈相互作用的量子泵
Exchange fluctuation theorems for strongly interacting quantum pumps
论文作者
论文摘要
我们通过考虑量子测量值的反作用的信息贡献,为具有任意耦合强度的多部分系统得出一般的量子交换定理,这有助于量子系统的von-neumann熵的增加。最终的热力学第二定律比传统的克劳西乌斯不平等更紧密。派生的结合是条件热状态的量子相互信息,该信息是以初始能量测量为条件的热状态。这些结果阐明了量子相关性在多个子系统之间的热交换中的作用。
We derive a general quantum exchange fluctuation theorem for multipartite systems with arbitrary coupling strengths by taking into account the informational contribution of the back-action of the quantum measurements, which contributes to the increase in the von-Neumann entropy of the quantum system. The resulting second law of thermodynamics is tighter than the conventional Clausius inequality. The derived bound is the quantum mutual information of the conditional thermal state, which is a thermal state conditioned on the initial energy measurement. These results elucidate the role of quantum correlations in the heat exchange between multiple subsystems.