Nonequilibrium reservoir engineering of a biased coherent conductor for hybrid energy transport in nanojunctions  

作　　者：Bing-Zhong Hu Lei-Lei Nian Jing-Tao Lü 胡柄中;年磊磊;吕京涛(School of Physics and Wuhan National High Magnetic Field Center,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]School of Physics and Wuhan National High Magnetic Field Center,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Chinese Physics B》2020年第12期44-49,共6页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2017YFA0403501);the National Natural Science Foundation of China(Grant No.21873033);the Program for HUST Academic Frontier Youth Team。

摘　　要：We show that a current-carrying coherent electron conductor can be treated as an effective bosonic energy reservoir involving different types of electron–hole pair excitations.For weak electron–boson coupling,hybrid energy transport between nonequilibrium electrons and bosons can be described by a Landauer-like formula.This allows for unified account of a variety of heat transport problems in hybrid electron–boson systems.As applications,we study the non-reciprocal heat transport between electrons and bosons,thermoelectric current from a cold-spot,and electronic cooling of the bosons.Our unified framework provides an intuitive way of understanding hybrid energy transport between electrons and bosons in their weak coupling limit.It opens the way of nonequilibrium reservoir engineering for efficient energy control between different quasi-particles at the nanoscale.

关 键 词：electron–hole pair hybrid energy transport nanojunction electron–phonon interaction 

分 类 号：O469[理学—凝聚态物理]