A Note on Gravitational Baryogenesis
Abstract
Description
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.
10 pages, accepted for publication in Physical Review D
10 pages, accepted for publication in Physical Review D