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Quantum Mechanical Engine for the Quantum Rabi Model
We consider a purely mechanical quantum cycle comprised of adiabatic and isoenergetic processes. In the latter, the system interacts with an energy bath keeping constant the expectation value of the Hamiltonian. In this work, we study the performance of the quantum cycle for a system described by th...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7512331/ https://www.ncbi.nlm.nih.gov/pubmed/33265855 http://dx.doi.org/10.3390/e20100767 |
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author | Alvarado Barrios, Gabriel Peña, Francisco J. Albarrán-Arriagada, Francisco Vargas, Patricio Retamal, Juan Carlos |
author_facet | Alvarado Barrios, Gabriel Peña, Francisco J. Albarrán-Arriagada, Francisco Vargas, Patricio Retamal, Juan Carlos |
author_sort | Alvarado Barrios, Gabriel |
collection | PubMed |
description | We consider a purely mechanical quantum cycle comprised of adiabatic and isoenergetic processes. In the latter, the system interacts with an energy bath keeping constant the expectation value of the Hamiltonian. In this work, we study the performance of the quantum cycle for a system described by the quantum Rabi model for the case of controlling the coupling strength parameter, the resonator frequency, and the two-level system frequency. For the cases of controlling either the coupling strength parameter or the resonator frequency, we find that it is possible to closely approach to maximal unit efficiency when the parameter is sufficiently increased in the first adiabatic stage. In addition, for the first two cases the maximal work extracted is obtained at parameter values corresponding to high efficiency, which constitutes an improvement over current proposals of this cycle. |
format | Online Article Text |
id | pubmed-7512331 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75123312020-11-09 Quantum Mechanical Engine for the Quantum Rabi Model Alvarado Barrios, Gabriel Peña, Francisco J. Albarrán-Arriagada, Francisco Vargas, Patricio Retamal, Juan Carlos Entropy (Basel) Article We consider a purely mechanical quantum cycle comprised of adiabatic and isoenergetic processes. In the latter, the system interacts with an energy bath keeping constant the expectation value of the Hamiltonian. In this work, we study the performance of the quantum cycle for a system described by the quantum Rabi model for the case of controlling the coupling strength parameter, the resonator frequency, and the two-level system frequency. For the cases of controlling either the coupling strength parameter or the resonator frequency, we find that it is possible to closely approach to maximal unit efficiency when the parameter is sufficiently increased in the first adiabatic stage. In addition, for the first two cases the maximal work extracted is obtained at parameter values corresponding to high efficiency, which constitutes an improvement over current proposals of this cycle. MDPI 2018-10-07 /pmc/articles/PMC7512331/ /pubmed/33265855 http://dx.doi.org/10.3390/e20100767 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Alvarado Barrios, Gabriel Peña, Francisco J. Albarrán-Arriagada, Francisco Vargas, Patricio Retamal, Juan Carlos Quantum Mechanical Engine for the Quantum Rabi Model |
title | Quantum Mechanical Engine for the Quantum Rabi Model |
title_full | Quantum Mechanical Engine for the Quantum Rabi Model |
title_fullStr | Quantum Mechanical Engine for the Quantum Rabi Model |
title_full_unstemmed | Quantum Mechanical Engine for the Quantum Rabi Model |
title_short | Quantum Mechanical Engine for the Quantum Rabi Model |
title_sort | quantum mechanical engine for the quantum rabi model |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7512331/ https://www.ncbi.nlm.nih.gov/pubmed/33265855 http://dx.doi.org/10.3390/e20100767 |
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