What is found upon defrosting the Universe after inflation

Details What is found upon defrosting the Universe after inflation What is found upon defrosting the Universe after inflation

1997-01-02

arxiv.org/abs/hep-ph/9701202v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Three pages, LaTeX. Talk given at the 18th Texas Symposium on Relativisitc Astrophysics, December 15-20, Chicago, Illinois

Scientific paper

At the end of inflation the Universe is frozen in a near zero-entropy state with energy density in a coherent scalar field and must be "defrosted" to produce the observed entropy and baryon number. Baryon asymmetry may be generated by the decay of supermassive Grand Unified Theory (GUT) bosons produced non-thermally in a preheating phase after inflation, thus solving many drawbacks facing GUT baryogenesis in the old reheating scenario.

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