Particle creation in slowly-rotating Robertson-Walker universes

Details Particle creation in slowly-rotating Robertson-Walker universes Particle creation in slowly-rotating Robertson-Walker universes

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.182..141m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 182, no. 1, Aug. 1991, p. 141-153.

Statistics

Computation

3

Computational Astrophysics, Field Theory (Physics), Particle Theory, Universe, Astronomical Models, Cosmology, Gravitational Effects, Particle Mass

Scientific paper

The dynamics of particle creation in the slowly rotating Robertson-Walker universe is studied by use of the Brans-Dicke theory, and four interesting solutions are obtained. Along with the discussion of the nature of the 'gravitational constant' and other physical parameters in these model universes, the behavior of these solutions with respect to Dirac's hypotheses are investigated. Also, it is found that the expansion law is determined by the particles created by the expansion itself. Except for the case of a flat universe, the metric rotation as well as the matter rotation is found to have a damping effect on the creation of particles.

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