An Etymological Dictionary of Astronomy and Astrophysics

The three conditions that are necessary for the generation of a → baryon asymmetry in the → early Universe. These conditions are:

1. The → baryon number should not be → conserved.
   

2. The → charge conjugation and → CP symmetry should be → violated, and
   

3. Departure from → thermal equilibrium.

See also: Named after Andrei Sakharov (1921-1989), who in 1967 described these three minimum conditions (A. D. Sakharov, 1967, Zh. Eksp. Teor. Fiz. Pis’ma 5, 32; 1967, JETP Lett. 91B, 24); → condition.