Vacuum effects in a spatially homogeneous and isotropic cosmological background.
Abstract
The authors obtain, by separation of variables, an exact solution to the KleinGordon and Dirac equations in a cosmological, spatiallyclosed, RobertsonWalker spacetime with a positive cosmological constant Λ. The model is associated with a universe filled with radiation. They analyze the phenomenon of particle creation for different values of the dimensionless coupling constant ξ.
 Publication:

Canadian Journal of Physics
 Pub Date:
 March 1992
 DOI:
 10.1139/p92019
 Bibcode:
 1992CaJPh..70..143V
 Keywords:

 Astronomical Models;
 Cosmology;
 Quantum Mechanics;
 Vacuum Effects;
 Dirac Equation;
 Hypergeometric Functions;
 KleinGordon Equation;
 Scalars;
 Wave Equations;
 Astrophysics