Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures

Autores
Fosco, Cesar Daniel; Lombardo, Fernando Cesar; Mazzitelli, Francisco Diego
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the contribution of the thermal zero modes to the Casimir free energy, in the case of a fluctuating electromagnetic (EM) field in the presence of real materials described by frequency-dependent, local and isotropic permittivity (ϵϵ) and permeability (μμ) functions. Those zero modes, present at any finite temperature, become dominant at high temperatures, since the theory is dimensionally reduced. Our work, within the context of the Derivative Expansion (DE) approach, focusses on the emergence of non analyticities in that dimensionally reduced theory. We conclude that the DE is well defined whenever the function Ω(ω)Ω(ω), defined by [Ω(ω)]2≡ω2ϵ(ω)[Ω(ω)]2≡ω2ϵ(ω), vanishes in the zero-frequency limit, for at least one of the two material media involved.
Fil: Fosco, Cesar Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Lombardo, Fernando Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Mazzitelli, Francisco Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Materia
Casimir
Effective
Temperature
Electromagnetic
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/44534
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Derivative Expansion for the Electromagnetic Casimir Free Energy at High TemperaturesFosco, Cesar DanielLombardo, Fernando CesarMazzitelli, Francisco DiegoCasimirEffectiveTemperatureElectromagnetichttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the contribution of the thermal zero modes to the Casimir free energy, in the case of a fluctuating electromagnetic (EM) field in the presence of real materials described by frequency-dependent, local and isotropic permittivity (ϵϵ) and permeability (μμ) functions. Those zero modes, present at any finite temperature, become dominant at high temperatures, since the theory is dimensionally reduced. Our work, within the context of the Derivative Expansion (DE) approach, focusses on the emergence of non analyticities in that dimensionally reduced theory. We conclude that the DE is well defined whenever the function Ω(ω)Ω(ω), defined by [Ω(ω)]2≡ω2ϵ(ω)[Ω(ω)]2≡ω2ϵ(ω), vanishes in the zero-frequency limit, for at least one of the two material media involved.Fil: Fosco, Cesar Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Lombardo, Fernando Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Mazzitelli, Francisco Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaAmerican Physical Society2015-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44534Fosco, Cesar Daniel; Lombardo, Fernando Cesar; Mazzitelli, Francisco Diego; Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures; American Physical Society; Physical Review D; 92; 1250; 12-2015; 1-110556-28212470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.125007info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.125007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:19:37Zoai:ri.conicet.gov.ar:11336/44534instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:19:37.518CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
title Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
spellingShingle Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
Fosco, Cesar Daniel
Casimir
Effective
Temperature
Electromagnetic
title_short Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
title_full Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
title_fullStr Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
title_full_unstemmed Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
title_sort Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures
dc.creator.none.fl_str_mv Fosco, Cesar Daniel
Lombardo, Fernando Cesar
Mazzitelli, Francisco Diego
author Fosco, Cesar Daniel
author_facet Fosco, Cesar Daniel
Lombardo, Fernando Cesar
Mazzitelli, Francisco Diego
author_role author
author2 Lombardo, Fernando Cesar
Mazzitelli, Francisco Diego
author2_role author
author
dc.subject.none.fl_str_mv Casimir
Effective
Temperature
Electromagnetic
topic Casimir
Effective
Temperature
Electromagnetic
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the contribution of the thermal zero modes to the Casimir free energy, in the case of a fluctuating electromagnetic (EM) field in the presence of real materials described by frequency-dependent, local and isotropic permittivity (ϵϵ) and permeability (μμ) functions. Those zero modes, present at any finite temperature, become dominant at high temperatures, since the theory is dimensionally reduced. Our work, within the context of the Derivative Expansion (DE) approach, focusses on the emergence of non analyticities in that dimensionally reduced theory. We conclude that the DE is well defined whenever the function Ω(ω)Ω(ω), defined by [Ω(ω)]2≡ω2ϵ(ω)[Ω(ω)]2≡ω2ϵ(ω), vanishes in the zero-frequency limit, for at least one of the two material media involved.
Fil: Fosco, Cesar Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Lombardo, Fernando Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Mazzitelli, Francisco Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
description We study the contribution of the thermal zero modes to the Casimir free energy, in the case of a fluctuating electromagnetic (EM) field in the presence of real materials described by frequency-dependent, local and isotropic permittivity (ϵϵ) and permeability (μμ) functions. Those zero modes, present at any finite temperature, become dominant at high temperatures, since the theory is dimensionally reduced. Our work, within the context of the Derivative Expansion (DE) approach, focusses on the emergence of non analyticities in that dimensionally reduced theory. We conclude that the DE is well defined whenever the function Ω(ω)Ω(ω), defined by [Ω(ω)]2≡ω2ϵ(ω)[Ω(ω)]2≡ω2ϵ(ω), vanishes in the zero-frequency limit, for at least one of the two material media involved.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/44534
Fosco, Cesar Daniel; Lombardo, Fernando Cesar; Mazzitelli, Francisco Diego; Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures; American Physical Society; Physical Review D; 92; 1250; 12-2015; 1-11
0556-2821
2470-0029
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44534
identifier_str_mv Fosco, Cesar Daniel; Lombardo, Fernando Cesar; Mazzitelli, Francisco Diego; Derivative Expansion for the Electromagnetic Casimir Free Energy at High Temperatures; American Physical Society; Physical Review D; 92; 1250; 12-2015; 1-11
0556-2821
2470-0029
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.125007
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.125007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.229304

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