A Note on Gravitational Baryogenesis

Details A Note on Gravitational Baryogenesis A Note on Gravitational Baryogenesis

2007-09-05

arxiv.org/abs/0709.0697v2

Phys.Rev.D76:123507,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, accepted for publication in Physical Review D

Scientific paper

10.1103/PhysRevD.76.123507

The coupling between Ricci scalar curvature and the baryon number current
dynamically breaks CPT in an expanding universe and leads to baryon asymmetry.
We study the effect of time dependence of equation of state parameter of the
FRW universe on this asymmetry.

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