Primordial Black Holes in the Very Early Universe

Details Primordial Black Holes in the Very Early Universe Primordial Black Holes in the Very Early Universe

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pkas....6...38h&link_type=abstract

Publications of the Korean Astronomical Society, vol.6, no.1, p.38-49

Astronomy and Astrophysics

Astronomy

Scientific paper

Energy density evolution of primordial black holes(PBHs) due to quantum gravitational tunneling effect in the very early universe is calculated for the four cases of GUTs(Grand Unified Theories) (SM, SUSY SM, SUSY SU(5), SU(5)). For the three of them(SM, SUSY SM, SUSY SU(5)), it is confirmed that there are a considerable amount of PBHs and so it may give a firm support to Lindley's paper(1981) in which he tried to solve the baryon asymmetry problem. It is shown that the formation of PBHs increases the cosmic scale factor R and decreases the total energy density rho_t faster than in the usual radiation dominated era.

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