论文标题
揭示高斯热发动机中的非经典性作用
Unravelling the non-classicality role in Gaussian heat engines
论文作者
论文摘要
量子热力学的核心是关于量子热发动机中的真正“量子”以及如何寻求量子性的一个基本问题，因此与经典协议相比，可以更有效地执行热力学任务。在这里，使用$ p $表述的概念，我们定义了一个称为经典性的函数，该功能量化了玻感模式的非经典性程度。此功能使我们能够探索非经典性在量子热发动机中的作用，并设计用于工作提取的最佳协议。对于两个特定的周期，一个量子奥托和一个广义周期，我们表明非经典性是更有效地执行热力学任务的基本资源。
At the heart of quantum thermodynamics lies a fundamental question about what is genuine "quantum" in quantum heat engines and how to seek this quantumness, so that thermodynamical tasks could be performed more efficiently compared with classical protocols. Here, using the concept of $P$-representability, we define a function called classicality, which quantifies the degree of non-classicality of bosonic modes. This function allows us to explore the role of non-classicality in quantum heat engines and design optimal protocols for work extraction. For two specific cycles, a quantum Otto and a generalised one, we show that non-classicality is a fundamental resource for performing thermodynamic tasks more efficiently.
