Evolution of dark energy perturbations for Slotheon field and power spectrum

Abstract Within the framework of modified gravity model namely Slotheon model, inspired by the theory of extra dimensions, we explore the behaviour of Dark Energy and the perturbations thereof. The Dark Energy and matter perturbations equations are then derived and solved numerically by defining cer...

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Main Authors: Upala Mukhopadhyay, Debasish Majumdar, Debabrata Adak
Format: Article
Language:English
Published: SpringerOpen 2020-06-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-020-8165-6
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spelling doaj-a0b77fd6df1b4fa0b8a7a10f98b371242020-11-25T03:07:24ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-06-0180611110.1140/epjc/s10052-020-8165-6Evolution of dark energy perturbations for Slotheon field and power spectrumUpala Mukhopadhyay0Debasish Majumdar1Debabrata Adak2Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, HBNIAstroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, HBNIDepartment of Physics, Government General Degree CollegeAbstract Within the framework of modified gravity model namely Slotheon model, inspired by the theory of extra dimensions, we explore the behaviour of Dark Energy and the perturbations thereof. The Dark Energy and matter perturbations equations are then derived and solved numerically by defining certain dimensionless variables and properly chosen initial conditions. The results are compared with those for standard quintessence model and $$\varLambda $$ Λ CDM model. The matter power spectrum is obtained and also compared with that for $$\varLambda $$ Λ CDM model. It appears that Dark Energy in Slotheon model is more akin to that for $$\varLambda $$ Λ CDM model than the standard quintessence model.http://link.springer.com/article/10.1140/epjc/s10052-020-8165-6
collection DOAJ
language English
format Article
sources DOAJ
author Upala Mukhopadhyay
Debasish Majumdar
Debabrata Adak
spellingShingle Upala Mukhopadhyay
Debasish Majumdar
Debabrata Adak
Evolution of dark energy perturbations for Slotheon field and power spectrum
European Physical Journal C: Particles and Fields
author_facet Upala Mukhopadhyay
Debasish Majumdar
Debabrata Adak
author_sort Upala Mukhopadhyay
title Evolution of dark energy perturbations for Slotheon field and power spectrum
title_short Evolution of dark energy perturbations for Slotheon field and power spectrum
title_full Evolution of dark energy perturbations for Slotheon field and power spectrum
title_fullStr Evolution of dark energy perturbations for Slotheon field and power spectrum
title_full_unstemmed Evolution of dark energy perturbations for Slotheon field and power spectrum
title_sort evolution of dark energy perturbations for slotheon field and power spectrum
publisher SpringerOpen
series European Physical Journal C: Particles and Fields
issn 1434-6044
1434-6052
publishDate 2020-06-01
description Abstract Within the framework of modified gravity model namely Slotheon model, inspired by the theory of extra dimensions, we explore the behaviour of Dark Energy and the perturbations thereof. The Dark Energy and matter perturbations equations are then derived and solved numerically by defining certain dimensionless variables and properly chosen initial conditions. The results are compared with those for standard quintessence model and $$\varLambda $$ Λ CDM model. The matter power spectrum is obtained and also compared with that for $$\varLambda $$ Λ CDM model. It appears that Dark Energy in Slotheon model is more akin to that for $$\varLambda $$ Λ CDM model than the standard quintessence model.
url http://link.springer.com/article/10.1140/epjc/s10052-020-8165-6
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AT debasishmajumdar evolutionofdarkenergyperturbationsforslotheonfieldandpowerspectrum
AT debabrataadak evolutionofdarkenergyperturbationsforslotheonfieldandpowerspectrum
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