Behavior of interacting Ricci dark energy in logarithmic f(T) gravity

محورهای موضوعی : Journal of Theoretical and Applied Physics

Rahul Ghosh ¹ , Antonio Pasqua ² , Surajit Chattopadhyay ³

1 - Department of Mathematics, Bhairab Ganguly College
2 - Department of Physics, University of Trieste
3 - Pailan College of Management and Technology

تاریخ پذیرش : 1392/09/10 تاریخ انتشار : 1392/09/10

کلید واژه: Logarithmic () gravity, Ricci dark energy, Dark Matter (DM),

چکیده مقاله :

AbstractIn the present work, we have considered a modified gravity model dubbed as ‘logarithmic f(T) gravity’ as reported by Bamba et al. (J. Cosmol. Astropart. Phys 1101:21, 2011) and investigated the behavior of Ricci dark energy interacting with pressureless Dark Matter. We have chosen the interaction term in the form Q=3Hδρm and investigated the behavior of the Hubble parameter H as a function of the redshift z. For this reconstructed H, we have investigated the behavior of the fractional density contribution due to the Ricci dark energy and torsion. Subsequently, we investigated the equation of state parameter wRDE which is found to have a phantom-like behavior for all choices of c2 in the Ricci dark energy density.PACS98.80.-k;95.36.+x;04.50.Kd