相互作用量子点电路 - 量子电动力学系统中的热电整流与放大

Thermoelectric Rectification and Amplification in Interacting Quantum-Dot Circuit-Quantum-Electrodynamics Systems.

作者信息

Lu Jincheng, Wang Rongqian, Wang Chen, Jiang Jian-Hua

机构信息

Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China.

Institute of Theoretical and Applied Physics, School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.

出版信息

Entropy (Basel). 2023 Mar 14;25(3):498. doi: 10.3390/e25030498.

DOI:10.3390/e25030498

PMID:36981386

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10047699/

Abstract

Thermoelectric rectification and amplification were investigated in an interacting quantum-dot circuit-quantum-electrodynamics system. By applying the Keldysh nonequilibrium Green's function approach, we studied the elastic (energy-conserving) and inelastic (energy-nonconserving) transport through a cavity-coupled quantum dot under the voltage biases in a wide spectrum of electron-electron and electron-photon interactions. While significant charge and Peltier rectification effects were found for strong light-matter interactions, the dependence on electron-electron interaction could be nonmonotonic and dramatic. Electron-electron interaction-enhanced transport was found under certain resonance conditions. These nontrivial interaction effects were found in both linear and nonlinear transport regimes, which manifested in charge and thermal currents, rectification effects, and the linear thermal transistor effect.

摘要

在一个相互作用的量子点电路 - 量子电动力学系统中研究了热电整流和放大效应。通过应用凯尔迪什非平衡格林函数方法，我们研究了在广泛的电子 - 电子和电子 - 光子相互作用的电压偏置下，通过一个腔耦合量子点的弹性（能量守恒）和非弹性（能量不守恒）输运。虽然对于强光 - 物质相互作用发现了显著的电荷和珀尔帖整流效应，但对电子 - 电子相互作用的依赖性可能是非单调的且显著的。在某些共振条件下发现了电子 - 电子相互作用增强的输运。这些非平凡的相互作用效应在线性和非线性输运区域中均被发现，表现在电荷和热电流、整流效应以及线性热晶体管效应中。