• Chameleon field and the late time acceleration of the Universe

• # Fulltext

https://www.ias.ac.in/article/fulltext/pram/074/03/L0481-L0489

• # Keywords

Cosmology; acceleration of the Universe; chameleon field.

• # Abstract

In the present work, it is shown that a chameleon scalar field having a non-minimal coupling with dark matter can give rise to a smooth transition from a decelerated to an accelerated phase of expansion for the Universe. It is surprising to note that the coupling with the chameleon scalar field hardly affects the evolution of the dark matter sector, which still redshifts as $a^{−3}$.

• # Author Affiliations

1. IISER-Kolkata, Mohanpur Campus, P.O. BCKV Main Office, District Nadia 741 252, India
3. Department of Physics, Relativity and Cosmology Research Centre, Jadavpur University, Kolkata 700 032, India

• # Pramana – Journal of Physics

Volume 95, 2021
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019