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arXiv · hep-ph/9804453

Inflationary Reheating in Grand Unified Theories

Bruce A. Bassett·Fabrizio Tamburini
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Abstract

Grand unified theories may display multiply interacting fields with strong coupling dynamics. This poses two new problems: (1) What is the nature of chaotic reheating after inflation, and (2) How is reheating sensitive to the mass spectrum of these theories ? We answer these questions in two interesting limiting cases and demonstrate an increased efficiency of reheating which strongly enhances non-thermal topological defect formation, including monopoles and domain walls. Nevertheless, the large fluctuations may resolve this monopole problem via a modified Dvali-Liu-Vachaspati mechanism in which non-thermal destabilsation of discrete symmetries occurs at reheating.

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Bruce A. Bassett, Fabrizio Tamburini. 1998-08-25. Inflationary Reheating in Grand Unified Theories. https://doi.org/10.1103/physrevlett.81.2630

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