Evolution of dark energy perturbations for Slotheon field and power spectrum

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 dime...

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Bibliographic Details
Published inThe European physical journal. C, Particles and fields Vol. 80; no. 6; pp. 1 - 11
Main Authors Mukhopadhyay, Upala, Majumdar, Debasish, Adak, Debabrata
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2020
Springer
Springer Nature B.V
SpringerOpen
Subjects
Analysis
Astronomy
Astrophysics and Cosmology
Dark energy
Dimensionless numbers
Elementary Particles
Hadrons
Heavy Ions
Initial conditions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quintessence (cosmology)
Radiation, Background
Regular Article - Theoretical Physics
String Theory
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Summary: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 Λ CDM model. The matter power spectrum is obtained and also compared with that for Λ CDM model. It appears that Dark Energy in Slotheon model is more akin to that for Λ CDM model than the standard quintessence model.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-020-8165-6