Pair creation in cosmology when electromagnetic fields are present

Details Pair creation in cosmology when electromagnetic fields are present Pair creation in cosmology when electromagnetic fields are present

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jpha...13..517s&link_type=abstract

Journal of Physics A - Mathematical and General, vol. 13, Feb. 1980, p. 517-528.

Physics

6

Background Radiation, Big Bang Cosmology, Electromagnetic Fields, Pair Production, Universe, Gravitational Fields, Particle Density (Concentration), Time Dependence

Scientific paper

The amount of particle pairs created in a 3-flat Robertson-Walker Universe with an expansion law for the early Universe is calculated exactly when a homogeneous electromagnetic field is present. Under some restrictions a time-dependent particle creation rate is found. Finally we show that the low-frequency part of the cosmological 2.7 K background radiation can be identified with the stationary electromagnetic field discussed before. According to this a large amount of particles of the order of the number of particles in the Universe should be created out of the vacuum in the immediate neighbourhood of the 'big bang'.

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