Quantum corrections to the entropy in a driven quantum Brownian motion model

作     者：Tian Qiu Hai-Tao Quan Tian Qiu;Hai-Tao Quan

作者机构：School of PhysicsPeking UniversityBeijing 100871China Collaborative Innovation Center of Quantum MatterBeijing 100871China Frontiers Science Center for Nano-optoelectronicsPeking UniversityBeijing100871China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2021年第73卷第9期

页      面：136-144页

核心收录：

学科分类：080701[工学-工程热物理] 07[理学] 08[工学] 0807[工学-动力工程及工程热物理] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：support from the National Science Foundation of China under Grants Nos.11775001 11534002 and 11825001 

主　　题：quantum Brownian motion time-dependent evolution quantum entropy 

摘      要：The quantum Brownian motion model is a typical model in the study of nonequilibrium quantum *** is one of the most fundamental physical concepts in *** this work,by solving the quantum Langevin equation,we study the von Neumann entropy of a particle undergoing quantum Brownian *** obtain the analytical expression of the time evolution of the Wigner function in terms of the initial Wigner *** result is applied to the thermodynamic equilibrium initial state,which reproduces its classical counterpart in the high temperature *** on these results,for those initial states having well-defined classical counterparts,we obtain the explicit expression of the quantum corrections to the entropy in the weak coupling ***,we find that for the thermodynamic equilibrium initial state,all terms odd inÿ are exactly *** results bring important insights to the understanding of entropy in open quantum systems.