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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2020-06-01
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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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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 |
work_keys_str_mv |
AT upalamukhopadhyay evolutionofdarkenergyperturbationsforslotheonfieldandpowerspectrum AT debasishmajumdar evolutionofdarkenergyperturbationsforslotheonfieldandpowerspectrum AT debabrataadak evolutionofdarkenergyperturbationsforslotheonfieldandpowerspectrum |
_version_ |
1724670784650084352 |