Gravitational baryogenesis.
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.
Davoudiasl
Hooman
H
School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, USA.
Kitano
Ryuichiro
R
Kribs
Graham D
GD
Murayama
Hitoshi
H
Steinhardt
Paul J
PJ