Heat Transport in a Spin-Boson Model at Low Temperatures: A Multilayer Multiconfiguration Time-Dependent Hartree Study

Entropy

Haobin Wang¹  Chou-Hsun Yang¹ 

[1] Department of Chemistry, University of Colorado Denver, Denver, CO 80217-3364, USA;

关键词: ML-MCTDH;    spin-boson;    heat transport;    quantum dynamics;   

DOI  :  10.3390/e22101099

来源: DOAJ

【 摘 要 】

Extending our previous work, quantum dynamic simulations are performed to study low temperature heat transport in a spin-boson model where a two-level subsystem is coupled to two independent harmonic baths. Multilayer multiconfiguration time-dependent Hartree theory is used to numerically evaluate the thermal flux, for which the bath is represented by hundreds to thousands of modes. The simulation results are compared with the approximate Redfield theory approach, and the physics is analyzed versus different physical parameters.

【 授权许可】

Unknown