Gravitational baryogenesis
- PMID: 15600908
- DOI: 10.1103/PhysRevLett.93.201301
Gravitational baryogenesis
Abstract
We show that a gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current dynamically breaks CPT in an expanding Universe and, combined with baryon-number-violating interactions, can drive the Universe towards an equilibrium baryon asymmetry that is observationally acceptable.
