http://arxiv.org/abs/1510.08253
We consider the precession of a Dirac particle spin in some anisotropic Bianchi universes. This effect is present already in the Bianchi-I universe. In the Bianchi-IX universe it acquires the chaotic character due to the stochasticity of the oscillatory approach to the cosmological singularity. The related helicity flip of fermions in the very early Universe may produce the sterile particles contributing to dark matter.
A. Kamenshchik and O. Teryaev
Thu, 29 Oct 15
53/67
Comments: 10 pages, no figures