Open quantum systems with nonlinear environmental backactions: Extended dissipaton theory versus core-system hierarchy construction

• URL: http://arxiv.org/abs/2206.14375v4
• Date: Wed, 25 Jan 2023 15:02:02 GMT
• Title: Open quantum systems with nonlinear environmental backactions: Extended dissipaton theory versus core-system hierarchy construction
• Authors: Zi-Hao Chen and Yao Wang and Rui-Xue Xu and YiJing Yan
• Abstract summary: We present a comprehensive account of quantum dissipation theories with the quadratic environment couplings. Development includes the Brownian solvation mode embedded hierarchical quantum master equations. Core-system hierarchy quantum master equation is favorable for ''visualizing'' the correlated solvation dynamics.
• Score: 8.247015134050201
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we present a comprehensive account of quantum dissipation theories with the quadratic environment couplings. The theoretical development includes the Brownian solvation mode embedded hierarchical quantum master equations, a core-system hierarchy construction that verifies the extended dissipaton equation of motion (DEOM) formalism [R. X. Xu et al., J. Chem. Phys. 148, 114103 (2018)]. Developed are also the quadratic imaginary-time DEOM for equilibrium and the {\lambda} (t)-DEOM for nonequilibrium thermodynamics problems. Both the celebrated Jarzynski equality and Crooks relation are accurately reproduced, which in turn confirms the rigorousness of the extended DEOM theories. While the extended DEOM is more numerically efficient, the core-system hierarchy quantum master equation is favorable for ''visualizing'' the correlated solvation dynamics.

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