Inflation in inhomogeneous spacetimes: bubble evolution

The evolution of a vacuum bubble embedded in an inhomogeneous spacetime is relevant for the modelling of inflation in the presence of inhomogeneities. We developed a numerical scheme based on Israel’s matching conditions to solve the evolution of the bubble for spherically symmetric inhomogeneous b...

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Autores principales: Teppa Pannia, Florencia Anabella, Pérez Bergliaffa, Santiago Esteban
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Astronómicas
bubble
numerical scheme
inhomogeneous spacetime
evolution
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/165276
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-165276
record_format dspace
spelling I19-R120-10915-1652762024-04-24T20:07:50Z http://sedici.unlp.edu.ar/handle/10915/165276 Inflation in inhomogeneous spacetimes: bubble evolution Teppa Pannia, Florencia Anabella Pérez Bergliaffa, Santiago Esteban 2014-04 2015 2024-04-24T17:43:33Z en Ciencias Astronómicas bubble numerical scheme inhomogeneous spacetime evolution The evolution of a vacuum bubble embedded in an inhomogeneous spacetime is relevant for the modelling of inflation in the presence of inhomogeneities. We developed a numerical scheme based on Israel’s matching conditions to solve the evolution of the bubble for spherically symmetric inhomogeneous backgrounds. Particular attention is paid to spacetimes with perfect fluid with non-zero pressure as a source, which are described by Lemaître solution of Einstein’s equations. As a previous step that serves as a check of the numerical scheme, we present here the case of a bubble evolving in a FLRW metric with radiation as a source. Facultad de Ciencias Astronómicas y Geofísicas Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 241-244
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
bubble
numerical scheme
inhomogeneous spacetime
evolution
spellingShingle Ciencias Astronómicas
bubble
numerical scheme
inhomogeneous spacetime
evolution
Teppa Pannia, Florencia Anabella
Pérez Bergliaffa, Santiago Esteban
Inflation in inhomogeneous spacetimes: bubble evolution
topic_facet Ciencias Astronómicas
bubble
numerical scheme
inhomogeneous spacetime
evolution
description The evolution of a vacuum bubble embedded in an inhomogeneous spacetime is relevant for the modelling of inflation in the presence of inhomogeneities. We developed a numerical scheme based on Israel’s matching conditions to solve the evolution of the bubble for spherically symmetric inhomogeneous backgrounds. Particular attention is paid to spacetimes with perfect fluid with non-zero pressure as a source, which are described by Lemaître solution of Einstein’s equations. As a previous step that serves as a check of the numerical scheme, we present here the case of a bubble evolving in a FLRW metric with radiation as a source.
format Objeto de conferencia
Objeto de conferencia
author Teppa Pannia, Florencia Anabella
Pérez Bergliaffa, Santiago Esteban
author_facet Teppa Pannia, Florencia Anabella
Pérez Bergliaffa, Santiago Esteban
author_sort Teppa Pannia, Florencia Anabella
title Inflation in inhomogeneous spacetimes: bubble evolution
title_short Inflation in inhomogeneous spacetimes: bubble evolution
title_full Inflation in inhomogeneous spacetimes: bubble evolution
title_fullStr Inflation in inhomogeneous spacetimes: bubble evolution
title_full_unstemmed Inflation in inhomogeneous spacetimes: bubble evolution
title_sort inflation in inhomogeneous spacetimes: bubble evolution
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/165276
work_keys_str_mv AT teppapanniaflorenciaanabella inflationininhomogeneousspacetimesbubbleevolution
AT perezbergliaffasantiagoesteban inflationininhomogeneousspacetimesbubbleevolution
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