论文标题
量子领域高斯热状态的热交换和波动
Heat exchange and fluctuation in Gaussian thermal states in the quantum realm
论文作者
论文摘要
Jarzynski和Wózcik（Phys Rev. Lett。92，230602（2004））提出的著名交换波动定理，用于在不同温度下的热平衡中的两个系统之间的热量交换，以便在此处探索在热平衡中的量子高斯州。我们对量子状态采用Wigner分布函数形式主义，这些状态与类相位空间轨迹描述非常相似，以达到该定理。对于在两个不同温度下保持热平衡状态的两个高斯状态，在固定的持续时间内保持接触，我们表明量子jarzyinski-wózcik定理在极限\ hbar-> 0中与相应的经典结果一致。
The celebrated exchange fluctuation theorem -- proposed by Jarzynski and Wózcik, (Phys Rev. Lett. 92, 230602 (2004)) for heat exchange between two systems in thermal equilibrium at different temperatures -- is explored here for quantum Gaussian states in thermal equilibrium. We employ Wigner distribution function formalism for quantum states, which exhibits close resemblance with the classcial phase-space trajectory description, to arrive at this theorem. For two Gaussian states in thermal equilibrium at two different temperatures kept in contact with each other for a fixed duration of time we show that the quantum Jarzyinski-Wózcik theorem agrees with the corresponding classical result in the limit \hbar->0.
