Work

Entangled system-and-environment dynamics: Phase–space dissipaton theory

Year: 2020

Type: article

Abstract: Dissipaton-equation-of-motion (DEOM) theory [Y. J. Yan, J. Chem. Phys. 140, 054105 (2014)] is an exact and nonperturbative many-particle method for open quantum systems. The existing dissipaton algebra also treats the dynamics of hybrid bath solvation coordinates. The dynamics of conjugate momentums remain to be addressed within the DEOM framework. In this work, we establish this missing ingredient, the dissipaton algebra on solvation momentums, with rigorous validations against necessary and sufficient criteria. The resulted phase-space DEOM theory will serve as a solid ground for further developments of various practical methods toward a broad range of applications. We illustrate this novel dissipaton algebra with the phase-space DEOM-evaluation on heat current fluctuation.

Source: The Journal of Chemical Physics

DOI: 10.1063/1.5135776

Authors: Yao Wang, Rui-Xue Xu, YiJing Yan

Institutions: University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials

Language: English

Topic: Advanced Thermodynamics and Statistical Mechanics

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Ministry of Science and Technology of the People's Republic of China

Awards: G1042929699, G1414469056, G2714420734, G8126579170