Qualitative study of anisotropic cosmological models with dark sector coupling

In this paper, we study the dynamical evolution of locally rotationally symmetric (LRS) Bianchi type I cosmological model with coupling of dark sector. We investigate the phase-plane analysis when dark energy is modelled as exponential quintessence, and is coupled to dark energy matter via linear co...

Full description

Saved in:
Bibliographic Details
Published inCanadian journal of physics Vol. 95; no. 11; pp. 1049 - 1061
Main Authors Raushan, Rakesh, Chaubey, R
Format Journal Article
LanguageEnglish
Published Ottawa NRC Research Press 01.11.2017
Canadian Science Publishing NRC Research Press
Subjects
Anisotropy
Astronomical models
Cosmology
Couplings
Dark energy
Dynamic stability
Dynamical systems
Evolution
LRS Bianchi type I universe
nergie sombre
paramtre de couplage
Physics research
Qualitative research
Quintessence (cosmology)
stabilit
systmes dynamiques
univers de type I de Bianchi LSR
Viability
Online AccessGet full text

Cover

More Information
Summary:In this paper, we study the dynamical evolution of locally rotationally symmetric (LRS) Bianchi type I cosmological model with coupling of dark sector. We investigate the phase-plane analysis when dark energy is modelled as exponential quintessence, and is coupled to dark energy matter via linear coupling between both dark components. The evolution of cosmological solutions is studied by using dynamical systems techniques. Stability and viability issues for three different physically viable linear couplings between both dark components are presented and discussed in detail.
ISSN:0008-4204
1208-6045
DOI:10.1139/cjp-2017-0088