The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system

Transport properties of a quantum dot coupled to a photon cavity are investigated using a quantum master equation in the steady-state regime. In the off-resonance regime, when the photon energy is smaller than the energy spacing between the lowest electron states of the quantum dot, we calculate the...

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Autores principales: Abdullah, Nzar Rauf, Tang, Chi-Shung, Manolescu, Andrei, Gudmundsson, Vidar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6789108/
https://www.ncbi.nlm.nih.gov/pubmed/31604993
http://dx.doi.org/10.1038/s41598-019-51320-8
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author Abdullah, Nzar Rauf
Tang, Chi-Shung
Manolescu, Andrei
Gudmundsson, Vidar
author_facet Abdullah, Nzar Rauf
Tang, Chi-Shung
Manolescu, Andrei
Gudmundsson, Vidar
author_sort Abdullah, Nzar Rauf
collection PubMed
description Transport properties of a quantum dot coupled to a photon cavity are investigated using a quantum master equation in the steady-state regime. In the off-resonance regime, when the photon energy is smaller than the energy spacing between the lowest electron states of the quantum dot, we calculate the current that is generated by photon replica states as the electronic system is pumped with photons. Tuning the electron-photon coupling strength, the photocurrent can be enhanced by the influences of the photon polarization, and the cavity-photon coupling strength of the environment. We show that the current generated through the photon replicas is very sensitive to the photon polarization, but it is not strongly dependent on the average number of photons in the environment.
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spelling pubmed-67891082019-10-17 The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system Abdullah, Nzar Rauf Tang, Chi-Shung Manolescu, Andrei Gudmundsson, Vidar Sci Rep Article Transport properties of a quantum dot coupled to a photon cavity are investigated using a quantum master equation in the steady-state regime. In the off-resonance regime, when the photon energy is smaller than the energy spacing between the lowest electron states of the quantum dot, we calculate the current that is generated by photon replica states as the electronic system is pumped with photons. Tuning the electron-photon coupling strength, the photocurrent can be enhanced by the influences of the photon polarization, and the cavity-photon coupling strength of the environment. We show that the current generated through the photon replicas is very sensitive to the photon polarization, but it is not strongly dependent on the average number of photons in the environment. Nature Publishing Group UK 2019-10-11 /pmc/articles/PMC6789108/ /pubmed/31604993 http://dx.doi.org/10.1038/s41598-019-51320-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Abdullah, Nzar Rauf
Tang, Chi-Shung
Manolescu, Andrei
Gudmundsson, Vidar
The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
title The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
title_full The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
title_fullStr The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
title_full_unstemmed The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
title_short The photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
title_sort photocurrent generated by photon replica states of an off-resonantly coupled dot-cavity system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6789108/
https://www.ncbi.nlm.nih.gov/pubmed/31604993
http://dx.doi.org/10.1038/s41598-019-51320-8
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