Cosmological density fluctuations produced by a Goldstone field

Details Cosmological density fluctuations produced by a Goldstone field Cosmological density fluctuations produced by a Goldstone field

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phrvl..48...59v&link_type=abstract

Physical Review Letters, vol. 48, Jan. 4, 1982, p. 59-61.

Physics

24

Broken Symmetry, Cosmology, Density Distribution, Field Theory (Physics), Galactic Evolution, Astronomical Models, Fluctuation Theory

Scientific paper

An alternative mechanism for the generation of density fluctuations in the early universe is suggested which does not rely on the existence of vacuum strings. For the case of a self-interacting scalar field undergoing symmetry breaking at a cosmological phase transition at a temperature of about 10 to the 17th GeV, it is shown that the massless Goldstone field produced is capable of producing pressure fluctuations sufficient to produce density fluctuations on a galactic scale.

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