Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System

Energies

Rawezh Bakr Marif¹  Nzar Rauf Abdullah¹  Hunar Omar Rashid¹ 

[1] Physics Department, College of Science, University of Sulaimani, Sulaymaniyah, Iraq;

关键词: thermal transport;    quantum wires;    cavity quantum electrodynamics;    electro-optical effects;    energy harvesting;   

DOI  :  10.3390/en12061082

来源: DOAJ

【 摘 要 】

We theoretically consider a short quantum wire, which on both ends is connected to leads that have different temperatures. The quantum wire is assumed to be coupled to a cavity with a single-photon mode. We calculate the heat and thermoelectric currents in the quantum wire under the effect of the photon field. In the absence of the photon field, a plateau in the thermoelectric current is observed due to the thermal smearing at a high temperature gradient. In the presence of the resonance photon field, when the energy spacing between the lowest states of the quantum wire is approximately equal to the photon energy, a suppression in thermoelectric current and negativity in the heat current are seen due to the dressed electron-photon states. It is also found that the cavity with high photon energy has more influence on the thermoelectric current at a high temperature gradient.

【 授权许可】

Unknown