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Title:		Particle creation in cosmology
Authors:		NOVIKOV, I. D.; STAROBINSKII, A. A.; ZELDOVICH, IA. B.
Affiliation:		AA(Akademiia Nauk SSSR, Institut Kosmicheskikh Issledovanii, Moscow, USSR) AB(Akademiia Nauk SSSR, Institut Teoreticheskoi Fiziki, Moscow, USSR) AC(Akademiia Nauk SSSR, Institut Prikladnoi Matematiki and Institut Kosmicheskikh Issledovanii, Moscow, USSR)
Journal:		In: Energy and physics; Proceedings of the Third General Conference, Bucharest, Rumania, September 9-12, 1975. (A76-38301 19-44) Geneva, European Physical Society, 1976, p. 209-214.
Publication Date:		00/1976
Category:		Astrophysics
Origin:		STI
NASA/STI Keywords:		ASTRONOMICAL MODELS, COSMOLOGY, GRAVITATIONAL EFFECTS, PARTICLE PRODUCTION, SINGULARITY (MATHEMATICS), ANISOTROPY, GRAVITATIONAL FIELDS, QUANTUM MECHANICS, SPACE-TIME FUNCTIONS, WHITE HOLES (ASTRONOMY)
Bibliographic Code:		1976ep...conf..209N

Abstract

The quantum effect of particle creation in strong, time-varying gravitational fields is depicted as a possible mechanism for the isotropy of the universe. This effect arises when one considers the quantization of fields (in particular, radiation fields) in curved space-time, i.e., in a background gravitational field. It is shown that particle creation is especially significant near a singularity of the most general type - an anisotropic singularity. Three consequences of particle creation are noted: (1) a rapid isotropization of cosmological expansion after a certain critical moment; (2) smallness of primordial rotational metric perturbations; and (3) the impossibility of long delay of cosmological white hole explosions.

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