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[00043] Matter-chameleon coupling in reconstructed Brans-Dicke cosmology

  • Session Time & Room : 3E (Aug.23, 17:40-19:20) @D407
  • Type : Contributed Talk
  • Abstract : In the present work, we studied the generalized Brans-Dicke (BD) model with a scalar field non-minimally coupled with the matter sector. We considered extended holographic Ricci dark energy $\rho_{\Lambda}=3\phi (\alpha\dot{H}+\beta H^2)$ in this BD cosmology framework, derived restrictions for BD parameter $\omega$, and observed a stronger matter-chameleon coupling. The EoS parameter behaved like quintom. We observed an increasing potential function as matter-chameleon coupling gets stronger. Also, deceleration parameter transited from decelerated to the accelerated universe phase.
  • Classification : 83F05, 83C56
  • Format : Online Talk on Zoom
  • Author(s) :
    • Surajit Chattopadhyay (Amity University, Kolkata)