Jiao Guangqian, Zhu Shoubao, He Jizhou, Ma Yongli, Wang Jianhui
Department of Physics, Nanchang University, Nanchang 330031, China.
State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
Phys Rev E. 2021 Mar;103(3-1):032130. doi: 10.1103/PhysRevE.103.032130.
We derive the general probability distribution function of stochastic work for quantum Otto engines in which both the isochoric and driving processes are irreversible due to finite time duration. The time-dependent work fluctuations, average work, and thermodynamic efficiency are explicitly obtained for a complete cycle operating with an analytically solvable two-level system. The effects of the irreversibility originating from finite-time cycle operation on the thermodynamic efficiency, work fluctuations, and relative power fluctuations are discussed.
我们推导了量子奥托发动机随机功的一般概率分布函数，其中等容过程和驱动过程由于有限的持续时间都是不可逆的。对于使用解析可解的两能级系统运行的完整循环，明确得到了随时间变化的功涨落、平均功和热力学效率。讨论了有限时间循环运行引起的不可逆性对热力学效率、功涨落和相对功率涨落的影响。
