Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System
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 ph...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/6/1082 |
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| author | Nzar Rauf Abdullah Rawezh Bakr Marif Hunar Omar Rashid |
| author_facet | Nzar Rauf Abdullah Rawezh Bakr Marif Hunar Omar Rashid |
| author_sort | Nzar Rauf Abdullah |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T13:10:40Z |
| format | Article |
| id | doaj.art-abf0aac2d3c448a1875b534e74192f66 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T13:10:40Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-abf0aac2d3c448a1875b534e74192f662022-12-22T04:22:35ZengMDPI AGEnergies1996-10732019-03-01126108210.3390/en12061082en12061082Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity SystemNzar Rauf Abdullah0Rawezh Bakr Marif1Hunar Omar Rashid2Physics Department, College of Science, University of Sulaimani, Sulaymaniyah, IraqPhysics Department, College of Science, University of Sulaimani, Sulaymaniyah, IraqPhysics Department, College of Science, University of Sulaimani, Sulaymaniyah, IraqWe 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.https://www.mdpi.com/1996-1073/12/6/1082thermal transportquantum wirescavity quantum electrodynamicselectro-optical effectsenergy harvesting |
| spellingShingle | Nzar Rauf Abdullah Rawezh Bakr Marif Hunar Omar Rashid Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System Energies thermal transport quantum wires cavity quantum electrodynamics electro-optical effects energy harvesting |
| title | Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System |
| title_full | Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System |
| title_fullStr | Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System |
| title_full_unstemmed | Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System |
| title_short | Photon-Mediated Thermoelectric and Heat Currents through a Resonant Quantum Wire-Cavity System |
| title_sort | photon mediated thermoelectric and heat currents through a resonant quantum wire cavity system |
| topic | thermal transport quantum wires cavity quantum electrodynamics electro-optical effects energy harvesting |
| url | https://www.mdpi.com/1996-1073/12/6/1082 |
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