Gong Hong, Wang Yao, Zheng Xiao, Xu Rui-Xue, Yan YiJing
Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
J Chem Phys. 2022 Aug 7;157(5):054109. doi: 10.1063/5.0095549.
The fluctuation theorem, where the central quantity is the work distribution, is an important characterization of nonequilibrium thermodynamics. In this work, based on the dissipaton-equation-of-motion theory, we develop an exact method to evaluate the work distributions in quantum impurity system-bath mixing processes in the presence of non-Markovian and strong couplings. Our results not only precisely reproduce the Jarzynski equality and Crooks relation but also reveal rich information on large deviation. The numerical demonstrations are carried out with a spin-boson model system.
涨落定理以功分布为核心量，是对非平衡态热力学的重要刻画。在这项工作中，基于运动耗散方程理论，我们开发了一种精确方法，用于评估存在非马尔可夫和强耦合情况下量子杂质系统 - 浴混合过程中的功分布。我们的结果不仅精确再现了雅津斯基等式和克鲁克斯关系，还揭示了关于大偏差的丰富信息。数值演示是在一个自旋 - 玻色子模型系统上进行的。
