(1) Laboratory of Information Technologies, Joint Institute for Nuclear Research, Dubna 141980, Moscow, Russia
Abstract:
Self-consistent system of spinor, scalar and BI gravitational fields in presence of magneto-fluid and Λ term is considered.
Assuming that the expansion of the BI universe is proportional to the σ1 component of the shear tensor, exact solutions for the metric functions, as well as for scalar and spinor fields are obtained.
For a non-positive Λ, the initially anisotropic space–time becomes isotropic one in the process of expansion; whereas for
Λ > 0, an oscillatory mode of expansion of the BI model occurs.
PACS numbers: 03.65.Pm and 04.20.Ha