Production of Particles by Gravitational Fields

Details Production of Particles by Gravitational Fields Production of Particles by Gravitational Fields

Mar 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969phrv..179.1247s&link_type=abstract

Physical Review, vol. 179, Issue 5, pp. 1247-1250

Physics

41

Scientific paper

The production of particles by gravitational fields is calculated within the framework of quantum field theory. It turns out that the expansion of the universe-giving rise to a time-dependent gravitational field-does not lead to an appreciable production at present, since the frequencies involved are too low. Particle production was, however, of importance during the first 10-20 sec after a "big bang." This mechanism of particle creation leads to equal numbers of particles and antiparticles.

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