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Open AccessArticle

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

1
Physics Department, College of Science, University of Sulaimani, Sulaymaniyah, Iraq
2
Komar Research Center, Komar University of Science and Technology, Sulaimani, Iraq
3
Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Energies 2019, 12(6), 1082; https://doi.org/10.3390/en12061082
Received: 17 February 2019 / Revised: 7 March 2019 / Accepted: 15 March 2019 / Published: 21 March 2019
(This article belongs to the Section Thermal Management)
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Abstract

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. View Full-Text
Keywords: thermal transport; quantum wires; cavity quantum electrodynamics; electro-optical effects; energy harvesting thermal transport; quantum wires; cavity quantum electrodynamics; electro-optical effects; energy harvesting
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Abdullah, N.R.; Marif, R.B.; Rashid, H.O. Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System. Energies 2019, 12, 1082.

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