Particle Creation in Isotropic Cosmologies

Details Particle Creation in Isotropic Cosmologies Particle Creation in Isotropic Cosmologies

Mar 1972

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972phrvl..28..705p&link_type=abstract

Physical Review Letters, vol. 28, Issue 11, pp. 705-708

Physics

28

Scientific paper

The simplest covariant generalization of the scalar wave equation leads to significant pion creation and annihilation processes near an isotropic Friedmann-type singularity (such processes are negligible for particles of nonzero spin). Estimates for a plausible initial state yield pion creation of the same order of magnitude as obtained by Zeldovich near an anisotropic Kasner-type singularity.

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