Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (7): 2155.doi: 10.7503/cjcu20210317

• Article • Previous Articles     Next Articles

Nonequilibrium System-Bath Entanglement Theorem Versus Heat Transport

DU Pengli, CHEN Zihao, SU Yu, WANG Yao(), XU Ruixue, YAN Yijing()   

  1. Hefei National Laboratory for Physical Sciences at the Microscale,Department of Chemical Physics,Synergetic Innovation Center of Quantum Information and Quantum Physics,Collaborative Innovation Center of Chemistry for Energy Materials(iChEM),University of Science and Technology of China,Hefei 230026,China
  • Received:2021-05-07 Online:2021-07-10 Published:2021-06-15
  • Contact: WANG Yao E-mail:wy2010@ustc.edu.cn;yanyj@ustc.edu.cn
  • Supported by:
    the National Key Research and Development Program of China(2017YFA0204904);the National Natural Science Foundation of China(21633006)

Abstract:

In this work, we extend the recently established system-bath entanglement theorem(SBET) to the nonequilibrium scenario, in which an arbitrary system couples to multiple Gaussian bath environments at different temperatures. The existing SBET connects the entangled system-bath response functions to those of local systems, while the extended theory is concerned with the nonequilibrium steady-state quantum transport current through molecular junctions. The new theory is established on the basis of the generalized Langevin equation, with a close relation to nonequilibrium thermodynamics in the quantum regime.

Key words: System-bath entanglement theorem, Generalized Langevin equation, Nonequilibrium Green’s function, Quantum transport

CLC Number: 

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