Communication, dynamical resource theory, and thermodynamics

Recently, new insights have been obtained by jointly studying communication and resource theory. This interplay consequently serves as a potential platform for interdisciplinary studies. To continue this line, we analyze the role of dynamical resources in a communication setup, and further apply our...

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Autor: Hsieh, Chung Yun|||0000-0002-2512-0274
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/369310
Acceso en línea:https://hdl.handle.net/2117/369310
https://dx.doi.org/10.1103/PRXQuantum.2.020318
Access Level:acceso abierto
Palabra clave:Thermodynamics
Resource theory
Termodinàmica
Àrees temàtiques de la UPC::Física
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spelling Communication, dynamical resource theory, and thermodynamicsHsieh, Chung Yun|||0000-0002-2512-0274ThermodynamicsResource theoryTermodinàmicaÀrees temàtiques de la UPC::FísicaRecently, new insights have been obtained by jointly studying communication and resource theory. This interplay consequently serves as a potential platform for interdisciplinary studies. To continue this line, we analyze the role of dynamical resources in a communication setup, and further apply our analysis to thermodynamics. To start with, we study classical-communication scenarios constrained by a given resource, in the sense that the information-processing channel is unable to supply additional amounts of the resource. We show that the one-shot classical capacity is upper bounded by resource preservability, which is a measure of the ability to preserve the resource. A lower bound can be further obtained when the resource is asymmetry. As an application, unexpectedly, under a recently studied thermalization model, we find that the smallest bath size needed to thermalize all outputs of a Gibbs-preserving coherence-annihilating channel upper bounds its one-shot classical capacity. When the channel is coherence nongenerating, the upper bound is given by a sum of coherence preservability and the bath size of the channel’s incoherent version. In this sense, bath sizes can be interpreted as the thermodynamic cost of transmitting classical information. This finding provides a dynamical analog of Landauer’s principle, and therefore bridges classical communication and thermodynamics. As another implication, we show that, in bipartite settings, classically correlated local baths can admit classical communication even when both local systems are completely thermalized. Hence, thermalizations can transmit information by accessing only classical correlation as a resource. Our results demonstrate interdisciplinary applications enabled by dynamical resource theory.Peer Reviewed20212021-05-1220222022-06-29journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/369310https://dx.doi.org/10.1103/PRXQuantum.2.020318reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3693102026-05-27T15:37:01Z
dc.title.none.fl_str_mv Communication, dynamical resource theory, and thermodynamics
title Communication, dynamical resource theory, and thermodynamics
spellingShingle Communication, dynamical resource theory, and thermodynamics
Hsieh, Chung Yun|||0000-0002-2512-0274
Thermodynamics
Resource theory
Termodinàmica
Àrees temàtiques de la UPC::Física
title_short Communication, dynamical resource theory, and thermodynamics
title_full Communication, dynamical resource theory, and thermodynamics
title_fullStr Communication, dynamical resource theory, and thermodynamics
title_full_unstemmed Communication, dynamical resource theory, and thermodynamics
title_sort Communication, dynamical resource theory, and thermodynamics
dc.creator.none.fl_str_mv Hsieh, Chung Yun|||0000-0002-2512-0274
author Hsieh, Chung Yun|||0000-0002-2512-0274
author_facet Hsieh, Chung Yun|||0000-0002-2512-0274
author_role author
dc.subject.none.fl_str_mv Thermodynamics
Resource theory
Termodinàmica
Àrees temàtiques de la UPC::Física
topic Thermodynamics
Resource theory
Termodinàmica
Àrees temàtiques de la UPC::Física
description Recently, new insights have been obtained by jointly studying communication and resource theory. This interplay consequently serves as a potential platform for interdisciplinary studies. To continue this line, we analyze the role of dynamical resources in a communication setup, and further apply our analysis to thermodynamics. To start with, we study classical-communication scenarios constrained by a given resource, in the sense that the information-processing channel is unable to supply additional amounts of the resource. We show that the one-shot classical capacity is upper bounded by resource preservability, which is a measure of the ability to preserve the resource. A lower bound can be further obtained when the resource is asymmetry. As an application, unexpectedly, under a recently studied thermalization model, we find that the smallest bath size needed to thermalize all outputs of a Gibbs-preserving coherence-annihilating channel upper bounds its one-shot classical capacity. When the channel is coherence nongenerating, the upper bound is given by a sum of coherence preservability and the bath size of the channel’s incoherent version. In this sense, bath sizes can be interpreted as the thermodynamic cost of transmitting classical information. This finding provides a dynamical analog of Landauer’s principle, and therefore bridges classical communication and thermodynamics. As another implication, we show that, in bipartite settings, classically correlated local baths can admit classical communication even when both local systems are completely thermalized. Hence, thermalizations can transmit information by accessing only classical correlation as a resource. Our results demonstrate interdisciplinary applications enabled by dynamical resource theory.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-05-12
2022
2022-06-29
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/369310
https://dx.doi.org/10.1103/PRXQuantum.2.020318
url https://hdl.handle.net/2117/369310
https://dx.doi.org/10.1103/PRXQuantum.2.020318
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
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Attribution-NonCommercial-NoDerivatives 4.0 International
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
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