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Title:
Is the formation of the universe 'from nothing' possible?
Authors:
ZEL'DOVICH, IAKOV BORISOVICH
Journal:
Priroda (ISSN 0032-874X), April 1988, p. 17-27. In Russian.
Publication Date:
04/1988
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL MODELS, COSMOLOGY, ELEMENTARY PARTICLES, UNIVERSE, BARYONS, BIG BANG COSMOLOGY, ENERGY CONSERVATION, LEPTONS, MATTER (PHYSICS)
Bibliographic Code:
1988Prir........17Z

Abstract

An effort is made to clarify whether the formation of the universe 'from nothing' contradicts the general laws of nature. It is suggested that the observed baryon asymmetry of the universe appears at an early stage of the universe expansion due to a difference in the properties of particles and antiparticles, and the absence in nature of a precise conservation law for the number of bayrons and leptons. Also considered are the hypothesis of the pulsating universe, the closed univsrse model, and the hypothesis of the quantum birth of the universe. A.D. Sakharov offers some comments on Zel'dovich's paper. 
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