Brane World Dynamics and Adiabatic Matter creation

Details Brane World Dynamics and Adiabatic Matter creation Brane World Dynamics and Adiabatic Matter creation

2006-03-24

arxiv.org/abs/astro-ph/0603666v2

Int.J.Mod.Phys. D15 (2006) 321-334

Astronomy and Astrophysics

Astrophysics

Replaced with TEX file,No figures, Corrected References and typos. Accepted in IJMPD

Scientific paper

10.1142/S0218271806008383

We have treated the adiabatic matter creation process in various three-brane models by applying thermodynamics of open systems. The matter creation rate is found to affect the evolution of scale factor and energy density of the universe. We find modification at early stages of cosmic dynamics. In GB and RS brane worlds, by chosing appropriate parameters we obtain standard scenario, while the warped DGP model has different Friedmann equations. During later stages, since the matter creation is negligible the evolution reduces to FRW expansion, in RS and GB models.

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