The European Physical Journal Plus

, 129:31

Interacting Ricci dark energy in scalar Gauss-Bonnet gravity

  • Surajit Chattopadhyay
  • Antonio Pasqua
  • Ayman A. Aly
Regular Article

DOI: 10.1140/epjp/i2014-14031-5

Cite this article as:
Chattopadhyay, S., Pasqua, A. & Aly, A.A. Eur. Phys. J. Plus (2014) 129: 31. doi:10.1140/epjp/i2014-14031-5


This paper reports a study on the cosmological application of interacting Ricci Dark Energy (RDE) density in the scalar Gauss-Bonnet framework. The interacting holographic RDE model has been employed to obtain the equation of state (EoS) in a spatially flat universe. The main results of this paper are that the reconstructed potential of scalar Gauss-Bonnet gravity for the interacting RDE model decays with the evolution of the universe. However, it is an increasing function of the scalar field \( \phi\) . Both the strong and weak energy conditions are violated. A phantom-like behavior of the EoS parameter has been obtained. The effective EoS parameter \( \omega_{eff}\) stays below -1 but tends to -1 with the evolution of the universe. However, it cannot cross the phantom boundary. Finally, the interacting RDE model in Gauss-Bonnet gravity gives accelerated expansion of the universe.

Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Surajit Chattopadhyay
    • 1
  • Antonio Pasqua
    • 2
  • Ayman A. Aly
    • 3
  1. 1.Pailan College of Management and TechnologyKolkataIndia
  2. 2.Department of PhysicsUniversity of TriesteTriesteItaly
  3. 3.Department of physicsDamnhour UniversityDamnhourEgypt