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

Author

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  • Nzar Rauf Abdullah

    (Physics Department, College of Science, University of Sulaimani, Sulaymaniyah, Iraq
    Komar Research Center, Komar University of Science and Technology, Sulaimani, Iraq
    Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland)

  • Rawezh Bakr Marif

    (Physics Department, College of Science, University of Sulaimani, Sulaymaniyah, Iraq
    These authors contributed equally to this work.)

  • Hunar Omar Rashid

    (Physics Department, College of Science, University of Sulaimani, Sulaymaniyah, Iraq
    These authors contributed equally to this work.)

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.

Suggested Citation

  • Nzar Rauf Abdullah & Rawezh Bakr Marif & Hunar Omar Rashid, 2019. "Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System," Energies, MDPI, vol. 12(6), pages 1-12, March.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:6:p:1082-:d:215817
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    References listed on IDEAS

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    1. Matthias Meschke & Wiebke Guichard & Jukka P. Pekola, 2006. "Single-mode heat conduction by photons," Nature, Nature, vol. 444(7116), pages 187-190, November.
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