Journal
PHYSICS LETTERS B
Volume 738, Issue -, Pages 424-427Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2014.10.009
Keywords
Particle creation; Isentropic process; Future deceleration
Funding
- Council of Scientific and Industrial Research (Indian Govt.)
- UGC-BSR Programme of Jadavpur University
Ask authors/readers for more resources
In the present work we discuss a third alternative to explain the latest observational data concerning the accelerating Universe and its different stages. The particle creation mechanism in the framework of non-equilibrium thermodynamics is considered as a basic cosmic mechanism acting on the flat FRW geometry. By assuming that the gravitationally induced particle production occurs under adiabatic conditions, the deceleration parameter is expressed in terms of the particle creation rate which is chosen as a truncated power series of the Hubble parameter. The model shows the evolution of the Universe starting from inflation to the present late time acceleration and it also predicts future decelerating stage. (C) 2014 The Authors. Published by Elsevier B. V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). Funded by SCOAP(3).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available