A domain wall description of brane inflation and observational aspects

A domain wall description of brane inflation and observational aspects

We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergravity theory. However, one can move towards each other...

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Main Authors: R.M.P. Neves, F.F. Santos, F.A. Brito
Format: Article
Language:English
Published: Elsevier 2020-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S037026932030616X
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spelling doaj-b9607ce58b464fd685089bd8684177112020-11-25T03:44:12ZengElsevierPhysics Letters B0370-26932020-11-01810135813A domain wall description of brane inflation and observational aspectsR.M.P. Neves0F.F. Santos1F.A. Brito2Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, BrazilDepartamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, BrazilDepartamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, Brazil; Departamento de Física, Universidade Federal de Campina Grande, Caixa Postal 10071, 58429-900 Campina Grande, Paraíba, Brazil; Corresponding author at: Departamento de Física, Universidade Federal de Campina Grande, Caixa Postal 10071, 58429-900 Campina Grande, Paraíba, Brazil.We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergravity theory. However, one can move towards each other due to an attractive force in between driven by bulk particle collisions and resonant tunneling effect. The accelerating domain wall is a 3-brane that is assumed to be our inflating early Universe. We analyze this inflationary phase governed by the inflaton potential induced on the brane. We compute the slow-roll parameters and show that the spectral index and the tensor-to-scalar ratio are within the recent observational data.http://www.sciencedirect.com/science/article/pii/S037026932030616X
collection DOAJ
language English
format Article
sources DOAJ
author R.M.P. Neves
F.F. Santos
F.A. Brito
spellingShingle R.M.P. Neves
F.F. Santos
F.A. Brito
A domain wall description of brane inflation and observational aspects
Physics Letters B
author_facet R.M.P. Neves
F.F. Santos
F.A. Brito
author_sort R.M.P. Neves
title A domain wall description of brane inflation and observational aspects
title_short A domain wall description of brane inflation and observational aspects
title_full A domain wall description of brane inflation and observational aspects
title_fullStr A domain wall description of brane inflation and observational aspects
title_full_unstemmed A domain wall description of brane inflation and observational aspects
title_sort domain wall description of brane inflation and observational aspects
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2020-11-01
description We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergravity theory. However, one can move towards each other due to an attractive force in between driven by bulk particle collisions and resonant tunneling effect. The accelerating domain wall is a 3-brane that is assumed to be our inflating early Universe. We analyze this inflationary phase governed by the inflaton potential induced on the brane. We compute the slow-roll parameters and show that the spectral index and the tensor-to-scalar ratio are within the recent observational data.
url http://www.sciencedirect.com/science/article/pii/S037026932030616X
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