A numerical simulation of pre-big bang cosmology

We analyse numerically the onset of pre-big bang inflation in an inhomogeneous, spherically symmetric Universe. Adding a small dilatonic perturbation to a trivial (Milne) background, we find that suitable regions of space undergo dilaton-driven inflation and quickly become spatially flat ($\Omega \t...

Descripción completa

Detalles Bibliográficos
Autores principales: Maharana, J., Onofri, E., Veneziano, G.
Lenguaje:eng
Publicado: 1998
Materias:
General Relativity and Cosmology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/1998/04/004
http://cds.cern.ch/record/344682
_version_ 1780891741090480128
author Maharana, J.
Onofri, E.
Veneziano, G.
author_facet Maharana, J.
Onofri, E.
Veneziano, G.
author_sort Maharana, J.
collection CERN
description We analyse numerically the onset of pre-big bang inflation in an inhomogeneous, spherically symmetric Universe. Adding a small dilatonic perturbation to a trivial (Milne) background, we find that suitable regions of space undergo dilaton-driven inflation and quickly become spatially flat ($\Omega \to 1$). Numerical calculations are pushed close enough to the big bang singularity to allow cross checks against previously proposed analytic asymptotic solutions.
id cern-344682
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
record_format invenio
spelling cern-3446822023-03-14T18:41:48Zdoi:10.1088/1126-6708/1998/04/004http://cds.cern.ch/record/344682engMaharana, J.Onofri, E.Veneziano, G.A numerical simulation of pre-big bang cosmologyGeneral Relativity and CosmologyWe analyse numerically the onset of pre-big bang inflation in an inhomogeneous, spherically symmetric Universe. Adding a small dilatonic perturbation to a trivial (Milne) background, we find that suitable regions of space undergo dilaton-driven inflation and quickly become spatially flat ($\Omega \to 1$). Numerical calculations are pushed close enough to the big bang singularity to allow cross checks against previously proposed analytic asymptotic solutions.We analyse numerically the onset of pre-big bang inflation in an inhomogeneous, spherically symmetric Universe. Adding a small dilatonic perturbation to a trivial (Milne) background, we find that suitable regions of space undergo dilaton-driven inflation and quickly become spatially flat ($\Omega \to 1$). Numerical calculations are pushed close enough to the big bang singularity to allow cross checks against previously proposed analytic asymptotic solutions.gr-qc/9802001CERN-TH-98-24UPRF-98-1CERN-TH-98-024UPRF-98-01oai:cds.cern.ch:3446821998-02-03
spellingShingle General Relativity and Cosmology
Maharana, J.
Onofri, E.
Veneziano, G.
A numerical simulation of pre-big bang cosmology
title A numerical simulation of pre-big bang cosmology
title_full A numerical simulation of pre-big bang cosmology
title_fullStr A numerical simulation of pre-big bang cosmology
title_full_unstemmed A numerical simulation of pre-big bang cosmology
title_short A numerical simulation of pre-big bang cosmology
title_sort numerical simulation of pre-big bang cosmology
topic General Relativity and Cosmology
url https://dx.doi.org/10.1088/1126-6708/1998/04/004
http://cds.cern.ch/record/344682
work_keys_str_mv AT maharanaj anumericalsimulationofprebigbangcosmology
AT onofrie anumericalsimulationofprebigbangcosmology
AT venezianog anumericalsimulationofprebigbangcosmology
AT maharanaj numericalsimulationofprebigbangcosmology
AT onofrie numericalsimulationofprebigbangcosmology
AT venezianog numericalsimulationofprebigbangcosmology

Ejemplares similares