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Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths
We study the heat and spin transport properties in a ring of interacting spins coupled to heat baths at different temperatures. We show that interactions, by inducing avoided crossings, can be a means to tune both the total heat current flowing between the ring and the baths, and the way it flows th...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514709/ https://www.ncbi.nlm.nih.gov/pubmed/33266943 http://dx.doi.org/10.3390/e21030228 |
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author | Xu, Xiansong Choo, Kenny Balachandran, Vinitha Poletti, Dario |
author_facet | Xu, Xiansong Choo, Kenny Balachandran, Vinitha Poletti, Dario |
author_sort | Xu, Xiansong |
collection | PubMed |
description | We study the heat and spin transport properties in a ring of interacting spins coupled to heat baths at different temperatures. We show that interactions, by inducing avoided crossings, can be a means to tune both the total heat current flowing between the ring and the baths, and the way it flows through the system. In particular, we recognize three regimes in which the heat current flows clockwise, counterclockwise, and in parallel. The temperature bias between the baths also induces a spin current within the ring, whose direction and magnitude can be tuned by the interaction. Lastly, we show how the ergotropy of the nonequilibrium steady state can increase significantly near the avoided crossings. |
format | Online Article Text |
id | pubmed-7514709 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75147092020-11-09 Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths Xu, Xiansong Choo, Kenny Balachandran, Vinitha Poletti, Dario Entropy (Basel) Article We study the heat and spin transport properties in a ring of interacting spins coupled to heat baths at different temperatures. We show that interactions, by inducing avoided crossings, can be a means to tune both the total heat current flowing between the ring and the baths, and the way it flows through the system. In particular, we recognize three regimes in which the heat current flows clockwise, counterclockwise, and in parallel. The temperature bias between the baths also induces a spin current within the ring, whose direction and magnitude can be tuned by the interaction. Lastly, we show how the ergotropy of the nonequilibrium steady state can increase significantly near the avoided crossings. MDPI 2019-02-27 /pmc/articles/PMC7514709/ /pubmed/33266943 http://dx.doi.org/10.3390/e21030228 Text en © 2019 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 Xu, Xiansong Choo, Kenny Balachandran, Vinitha Poletti, Dario Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths |
title | Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths |
title_full | Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths |
title_fullStr | Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths |
title_full_unstemmed | Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths |
title_short | Transport and Energetic Properties of a Ring of Interacting Spins Coupled to Heat Baths |
title_sort | transport and energetic properties of a ring of interacting spins coupled to heat baths |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514709/ https://www.ncbi.nlm.nih.gov/pubmed/33266943 http://dx.doi.org/10.3390/e21030228 |
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