标题： 随机热力学和埃里克森纳米引擎 —— 从平衡结果中获得的效率 显示英文标题

标题： Stochastic thermodynamics and the Ericsson nano engine -- Efficiency from equilibrium results

摘要： 在本工作中，我们研究了一个埃里克森循环，其工质是一个在磁场中的带电（量子）振子，并与热浴耦合。包含内置噪声项的量子朗之万方程概括了热力学结构，并允许计算循环的效率。我们使用系统的稳态热力学函数，在准静态范围内数值计算循环的效率。有趣的是，发现通过增加系统-热浴耦合强度，循环的效率可以被调制到最大值。我们还探讨了效率作为循环操作的磁场值对的函数的行为。 显示英文摘要

摘要： In this work, we study an Ericsson cycle whose working substance is a charged (quantum) oscillator in a magnetic field that is coupled to a heat bath. The resulting quantum Langevin equations with built-in noise terms encapsulate a thermodynamic structure and allow for the computation of the efficiency of the cycle. We numerically compute the efficiency of the cycle in the quasi-static regime using the steady-state thermodynamic functions of the system. Interestingly, it is found that by increasing the system-bath coupling strength, the efficiency of the cycle can be tuned to a maximum. We also explore the behavior of the efficiency as a function of the pair of magnetic-field values between which the cycle is operated.