We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Particle production and universal thermodynamics.
- Authors
Saha, Subhajit; Chakraborty, Subenoy
- Abstract
In the present work, particle creation mechanism has been employed to the Universe as a thermodynamical system. The Universe is considered to be a spatially flat FRW model and cosmic fluid is chosen as a perfect fluid with a barotropic equation of state- $$p=(\gamma -1)\rho $$ . By proper choice of the particle creation rate, expressions for the entropy and temperature have been determined at various stages of evolution of the Universe. Finally, using the deceleration parameter q as a function of the redshift parameter z based on recent observations, the particle creation rate has been evaluated and its variation at different epochs have been shown graphically.
- Subjects
PARTICLES (Nuclear physics); THERMODYNAMICS; FLUID mechanics; BAROTROPIC equation; EQUATIONS of state; TEMPERATURE effect
- Publication
General Relativity & Gravitation, 2015, Vol 47, Issue 11, p1
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-015-1964-7