Multicomponent solution in a modified theory of gravity in the early universe
Abstract
We study the modified theory of gravity in the Friedmann-Robertson-Walker universe composed of several perfect fluids. We consider the power law inflation and determine the equation of state parameters in terms of the parameters of modified gravity’s Lagrangian in the early universe. We also briefly discuss the gravitational baryogenesis in this model.
- Publication:
-
Physical Review D
- Pub Date:
- May 2008
- DOI:
- 10.1103/PhysRevD.77.103501
- arXiv:
- arXiv:0710.3308
- Bibcode:
- 2008PhRvD..77j3501M
- Keywords:
-
- 98.80.Cq;
- 04.50.Kd;
- Particle-theory and field-theory models of the early Universe;
- Modified theories of gravity;
- General Relativity and Quantum Cosmology;
- Astrophysics;
- High Energy Physics - Theory
- E-Print:
- 9 pages, accepted for publication in Physical Review D