1997/01/02 by A. Riotto, Antonio Riotto, Riotto, A.
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9701202
Three pages, LaTeX. Talk given at the 18th Texas Symposium on Relativisitc Astrophysics, December 15-20, Chicago, Illinois
arxiv created 1997/01/02 · openalex publication_date 1997/01/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.