Final state and thermodynamics of a dark energy universe

As it follows from the classical analysis, the typical final state of a dark energy universe where a dominant energy condition is violated is a finite-time, sudden future singularity (a big rip). For a number of dark energy universes (including scalar phantom and effective phantom theories as well a...

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Detalhes bibliográficos
Autores: Nojiri, Shin'ichi, Odintsov, Sergei D. [UNESP]
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2004
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/67918
Acesso em linha:http://dx.doi.org/10.1103/PhysRevD.70.103522
http://hdl.handle.net/11449/67918
Access Level:acceso abierto
Palavra-chave:amplitude modulation
anisotropy
cosmos
electric potential
energy
thermodynamics
tuning curve
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spelling Final state and thermodynamics of a dark energy universeamplitude modulationanisotropycosmoselectric potentialenergythermodynamicstuning curveAs it follows from the classical analysis, the typical final state of a dark energy universe where a dominant energy condition is violated is a finite-time, sudden future singularity (a big rip). For a number of dark energy universes (including scalar phantom and effective phantom theories as well as specific quintessence models) we demonstrate that quantum effects play the dominant role near a big rip, driving the universe out of a future singularity (or, at least, moderating it). As a consequence, the entropy bounds with quantum corrections become well defined near a big rip. Similarly, black hole mass loss due to phantom accretion is not so dramatic as was expected: masses do not vanish to zero due to the transient character of the phantom evolution stage. Some examples of cosmological evolution for a negative, time-dependent equation of state are also considered with the same conclusions. The application of negative entropy (or negative temperature) occurrence in the phantom thermodynamics is briefly discussed.Department of Applied Physics National Defence Academy, Hashirimizu Yokosuka 239-8686Institucio Catalana Recerca I E. Inst. d'Estudis Espacials Catalunya Edifici Nexus, Gran Capità 2-4, 08034 BarcelonaInst. Fisica Teorica Universidade Estadual Paulista, Sao PauloTSPU, TomskInst. Fisica Teorica Universidade Estadual Paulista, Sao PauloNational Defence AcademyEdifici NexusUniversidade Estadual Paulista (Unesp)TSPU2014-05-27T11:21:10Z2014-05-27T11:21:10Z2004-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1103/PhysRevD.70.103522Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 10, 2004.0556-2821http://hdl.handle.net/11449/6791810.1103/PhysRevD.70.1035222-s2.0-376490303432-s2.0-37649030343.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D: Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccessNojiri, Shin'ichiOdintsov, Sergei D. [UNESP]2024-11-25T14:22:23Zoai:repositorio.unesp.br:11449/67918Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-11-25T14:22:23Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Final state and thermodynamics of a dark energy universe
title Final state and thermodynamics of a dark energy universe
spellingShingle Final state and thermodynamics of a dark energy universe
Nojiri, Shin'ichi
amplitude modulation
anisotropy
cosmos
electric potential
energy
thermodynamics
tuning curve
title_short Final state and thermodynamics of a dark energy universe
title_full Final state and thermodynamics of a dark energy universe
title_fullStr Final state and thermodynamics of a dark energy universe
title_full_unstemmed Final state and thermodynamics of a dark energy universe
title_sort Final state and thermodynamics of a dark energy universe
dc.creator.none.fl_str_mv Nojiri, Shin'ichi
Odintsov, Sergei D. [UNESP]
author Nojiri, Shin'ichi
author_facet Nojiri, Shin'ichi
Odintsov, Sergei D. [UNESP]
author_role author
author2 Odintsov, Sergei D. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv National Defence Academy
Edifici Nexus
Universidade Estadual Paulista (Unesp)
TSPU
dc.subject.por.fl_str_mv amplitude modulation
anisotropy
cosmos
electric potential
energy
thermodynamics
tuning curve
topic amplitude modulation
anisotropy
cosmos
electric potential
energy
thermodynamics
tuning curve
description As it follows from the classical analysis, the typical final state of a dark energy universe where a dominant energy condition is violated is a finite-time, sudden future singularity (a big rip). For a number of dark energy universes (including scalar phantom and effective phantom theories as well as specific quintessence models) we demonstrate that quantum effects play the dominant role near a big rip, driving the universe out of a future singularity (or, at least, moderating it). As a consequence, the entropy bounds with quantum corrections become well defined near a big rip. Similarly, black hole mass loss due to phantom accretion is not so dramatic as was expected: masses do not vanish to zero due to the transient character of the phantom evolution stage. Some examples of cosmological evolution for a negative, time-dependent equation of state are also considered with the same conclusions. The application of negative entropy (or negative temperature) occurrence in the phantom thermodynamics is briefly discussed.
publishDate 2004
dc.date.none.fl_str_mv 2004-11-01
2014-05-27T11:21:10Z
2014-05-27T11:21:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1103/PhysRevD.70.103522
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 10, 2004.
0556-2821
http://hdl.handle.net/11449/67918
10.1103/PhysRevD.70.103522
2-s2.0-37649030343
2-s2.0-37649030343.pdf
url http://dx.doi.org/10.1103/PhysRevD.70.103522
http://hdl.handle.net/11449/67918
identifier_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 10, 2004.
0556-2821
10.1103/PhysRevD.70.103522
2-s2.0-37649030343
2-s2.0-37649030343.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review D: Particles, Fields, Gravitation and Cosmology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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score 15,198674

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