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Thawing in a coupled quintessence model

  • M. Honardoost
  • H. Mohseni Sadjadi
  • H. R. Sepangi
Research Article

Abstract

We consider the thawing model in the framework of coupled quintessence model. The effective potential has \(Z_2\) symmetry which is broken spontaneously when the dark matter density becomes less than a critical value leading the quintessence equation of state parameter to deviate from \(-1\). Conditions required for this procedure are obtained and analytical solution for the equation of state parameter is derived.

Keywords

Cosmology Thawing model Dark energy Dark matter Coupled quintessence 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • M. Honardoost
    • 1
  • H. Mohseni Sadjadi
    • 2
  • H. R. Sepangi
    • 1
  1. 1.Department of PhysicsShahid Beheshti UniversityTehranIran
  2. 2.Department of PhysicsUniversity of TehranTehranIran

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