Inflation without inflaton: A model for dark energy
- Autores
- Falomir, Horacio Alberto; Gamboa, J.; Méndez, F.; Gondolo, P.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The interaction between two initially causally disconnected regions of the Universe is studied using analogies of noncommutative quantum mechanics and the deformation of Poisson manifolds. These causally disconnect regions are governed by two independent Friedmann-Lemaître-Robertson-Walker (FLRW) metrics with scale factors a and b and cosmological constants Λa and Λb, respectively. The causality is turned on by positing a nontrivial Poisson bracket [Pα,Pβ]=ϵαβκG, where G is Newton's gravitational constant and κ is a dimensionless parameter. The posited deformed Poisson bracket has an interpretation in terms of 3-cocycles, anomalies, and Poissonian manifolds. The modified FLRW equations acquire an energy-momentum tensor from which we explicitly obtain the equation of state parameter. The modified FLRW equations are solved numerically and the solutions are inflationary or oscillating depending on the values of κ. In this model, the accelerating and decelerating regime may be periodic. The analysis of the equation of state clearly shows the presence of dark energy. By completeness, the perturbative solution for κ 1 is also studied.
Fil: Falomir, Horacio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Fil: Gamboa, J.. Universidad de Santiago de Chile; Chile
Fil: Méndez, F.. Universidad de Santiago de Chile; Chile
Fil: Gondolo, P.. University of Utah; Estados Unidos - Materia
-
No conmutatividad
Energía oscura - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/50234
Ver los metadatos del registro completo
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Inflation without inflaton: A model for dark energyFalomir, Horacio AlbertoGamboa, J.Méndez, F.Gondolo, P.No conmutatividadEnergía oscurahttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The interaction between two initially causally disconnected regions of the Universe is studied using analogies of noncommutative quantum mechanics and the deformation of Poisson manifolds. These causally disconnect regions are governed by two independent Friedmann-Lemaître-Robertson-Walker (FLRW) metrics with scale factors a and b and cosmological constants Λa and Λb, respectively. The causality is turned on by positing a nontrivial Poisson bracket [Pα,Pβ]=ϵαβκG, where G is Newton's gravitational constant and κ is a dimensionless parameter. The posited deformed Poisson bracket has an interpretation in terms of 3-cocycles, anomalies, and Poissonian manifolds. The modified FLRW equations acquire an energy-momentum tensor from which we explicitly obtain the equation of state parameter. The modified FLRW equations are solved numerically and the solutions are inflationary or oscillating depending on the values of κ. In this model, the accelerating and decelerating regime may be periodic. The analysis of the equation of state clearly shows the presence of dark energy. By completeness, the perturbative solution for κ 1 is also studied.Fil: Falomir, Horacio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; ArgentinaFil: Gamboa, J.. Universidad de Santiago de Chile; ChileFil: Méndez, F.. Universidad de Santiago de Chile; ChileFil: Gondolo, P.. University of Utah; Estados UnidosAmerican Physical Society2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50234Falomir, Horacio Alberto; Gamboa, J.; Méndez, F.; Gondolo, P.; Inflation without inflaton: A model for dark energy; American Physical Society; Physical Review D; 96; 8; 10-2017; 1-162470-00292470-0010CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.96.083534info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.083534info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:44:34Zoai:ri.conicet.gov.ar:11336/50234instacron: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:34982025-10-15 15:44:34.653CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Inflation without inflaton: A model for dark energy |
| title |
Inflation without inflaton: A model for dark energy |
| spellingShingle |
Inflation without inflaton: A model for dark energy Falomir, Horacio Alberto No conmutatividad Energía oscura |
| title_short |
Inflation without inflaton: A model for dark energy |
| title_full |
Inflation without inflaton: A model for dark energy |
| title_fullStr |
Inflation without inflaton: A model for dark energy |
| title_full_unstemmed |
Inflation without inflaton: A model for dark energy |
| title_sort |
Inflation without inflaton: A model for dark energy |
| dc.creator.none.fl_str_mv |
Falomir, Horacio Alberto Gamboa, J. Méndez, F. Gondolo, P. |
| author |
Falomir, Horacio Alberto |
| author_facet |
Falomir, Horacio Alberto Gamboa, J. Méndez, F. Gondolo, P. |
| author_role |
author |
| author2 |
Gamboa, J. Méndez, F. Gondolo, P. |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
No conmutatividad Energía oscura |
| topic |
No conmutatividad Energía oscura |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The interaction between two initially causally disconnected regions of the Universe is studied using analogies of noncommutative quantum mechanics and the deformation of Poisson manifolds. These causally disconnect regions are governed by two independent Friedmann-Lemaître-Robertson-Walker (FLRW) metrics with scale factors a and b and cosmological constants Λa and Λb, respectively. The causality is turned on by positing a nontrivial Poisson bracket [Pα,Pβ]=ϵαβκG, where G is Newton's gravitational constant and κ is a dimensionless parameter. The posited deformed Poisson bracket has an interpretation in terms of 3-cocycles, anomalies, and Poissonian manifolds. The modified FLRW equations acquire an energy-momentum tensor from which we explicitly obtain the equation of state parameter. The modified FLRW equations are solved numerically and the solutions are inflationary or oscillating depending on the values of κ. In this model, the accelerating and decelerating regime may be periodic. The analysis of the equation of state clearly shows the presence of dark energy. By completeness, the perturbative solution for κ 1 is also studied. Fil: Falomir, Horacio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina Fil: Gamboa, J.. Universidad de Santiago de Chile; Chile Fil: Méndez, F.. Universidad de Santiago de Chile; Chile Fil: Gondolo, P.. University of Utah; Estados Unidos |
| description |
The interaction between two initially causally disconnected regions of the Universe is studied using analogies of noncommutative quantum mechanics and the deformation of Poisson manifolds. These causally disconnect regions are governed by two independent Friedmann-Lemaître-Robertson-Walker (FLRW) metrics with scale factors a and b and cosmological constants Λa and Λb, respectively. The causality is turned on by positing a nontrivial Poisson bracket [Pα,Pβ]=ϵαβκG, where G is Newton's gravitational constant and κ is a dimensionless parameter. The posited deformed Poisson bracket has an interpretation in terms of 3-cocycles, anomalies, and Poissonian manifolds. The modified FLRW equations acquire an energy-momentum tensor from which we explicitly obtain the equation of state parameter. The modified FLRW equations are solved numerically and the solutions are inflationary or oscillating depending on the values of κ. In this model, the accelerating and decelerating regime may be periodic. The analysis of the equation of state clearly shows the presence of dark energy. By completeness, the perturbative solution for κ 1 is also studied. |
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2017 |
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2017-10 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/50234 Falomir, Horacio Alberto; Gamboa, J.; Méndez, F.; Gondolo, P.; Inflation without inflaton: A model for dark energy; American Physical Society; Physical Review D; 96; 8; 10-2017; 1-16 2470-0029 2470-0010 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/50234 |
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Falomir, Horacio Alberto; Gamboa, J.; Méndez, F.; Gondolo, P.; Inflation without inflaton: A model for dark energy; American Physical Society; Physical Review D; 96; 8; 10-2017; 1-16 2470-0029 2470-0010 CONICET Digital CONICET |
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eng |
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eng |
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