Gravitational Baryogenesis in Anisotropic Universe

Details Gravitational Baryogenesis in Anisotropic Universe Gravitational Baryogenesis in Anisotropic Universe

2010-10-24

arxiv.org/abs/1010.4966v1

Astrophys.Space Sci.333:305-309,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, no figure

Scientific paper

10.1007/s10509-010-0580-y

The interaction between Ricci scalar curvature and the baryon number current, dynamically breaks CPT in an expanding universe and leads to baryon asymmetry. Using this kind of interaction and study the gravitational baryogenesis in the Bianchi type I universe. We find out the effect of anisotropy of the universe on the baryon asymmetry for the case which the equation of state parameter, $\omega$, is dependent to time.

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