Bound polariton states in the Dicke–Ising model

We present a study of hybrid light–matter excitations in cavity QED materials using the Dicke–Ising model as a theoretical framework. Leveraging linear response theory, we derive the exact excitations of the system in the thermodynamic limit. Our results demonstrate that the cavity can localize spin...

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Autores: Román-Roche, Juan, Gómez-León, Álvaro, Luis, Fernando, Zueco, David
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:151197
Acceso en línea:http://zaguan.unizar.es/record/151197
Access Level:acceso abierto
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spelling Bound polariton states in the Dicke–Ising modelRomán-Roche, JuanGómez-León, ÁlvaroLuis, FernandoZueco, DavidWe present a study of hybrid light–matter excitations in cavity QED materials using the Dicke–Ising model as a theoretical framework. Leveraging linear response theory, we derive the exact excitations of the system in the thermodynamic limit. Our results demonstrate that the cavity can localize spin excitations, leading to the formation of bound polaritons, where the cavity acts as an impurity of the two-excitation band, localizing spin-wave pairs around single-spin domains. We derive the condition for the existence of these bound states and discuss its satisfiability in different regimes. Finally, we show that these effects persist in finite systems using exact-diagonalization calculations.2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/151197reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/AEI/CEX2023-001286-Sinfo:eu-repo/grantAgreement/ES/DGA/E09-17R-Q-MADinfo:eu-repo/grantAgreement/ES/MCIU/FPU20-07231info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131447B-C21info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1511972026-05-29T13:59:51Z
dc.title.none.fl_str_mv Bound polariton states in the Dicke–Ising model
title Bound polariton states in the Dicke–Ising model
spellingShingle Bound polariton states in the Dicke–Ising model
Román-Roche, Juan
title_short Bound polariton states in the Dicke–Ising model
title_full Bound polariton states in the Dicke–Ising model
title_fullStr Bound polariton states in the Dicke–Ising model
title_full_unstemmed Bound polariton states in the Dicke–Ising model
title_sort Bound polariton states in the Dicke–Ising model
dc.creator.none.fl_str_mv Román-Roche, Juan
Gómez-León, Álvaro
Luis, Fernando
Zueco, David
author Román-Roche, Juan
author_facet Román-Roche, Juan
Gómez-León, Álvaro
Luis, Fernando
Zueco, David
author_role author
author2 Gómez-León, Álvaro
Luis, Fernando
Zueco, David
author2_role author
author
author
description We present a study of hybrid light–matter excitations in cavity QED materials using the Dicke–Ising model as a theoretical framework. Leveraging linear response theory, we derive the exact excitations of the system in the thermodynamic limit. Our results demonstrate that the cavity can localize spin excitations, leading to the formation of bound polaritons, where the cavity acts as an impurity of the two-excitation band, localizing spin-wave pairs around single-spin domains. We derive the condition for the existence of these bound states and discuss its satisfiability in different regimes. Finally, we show that these effects persist in finite systems using exact-diagonalization calculations.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/151197
url http://zaguan.unizar.es/record/151197
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/AEI/CEX2023-001286-S
info:eu-repo/grantAgreement/ES/DGA/E09-17R-Q-MAD
info:eu-repo/grantAgreement/ES/MCIU/FPU20-07231
info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131447B-C21
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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