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Inflatonic Solitons In Running Mass Inflation

Kari Enqvist·Shinta Kasuya·Anupam Mazumdar
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Abstract

The inflaton condensate associated with a global symmetry can fragment into quasistable Q balls, provided the inflaton oscillations give rise to an effective equation of state with negative pressure. We study chaotic inflation with a running inflaton mass and show that, depending on the sign of the radiative mass correction, the process of fragmentation into inflatonic Q balls can actually take place even though no net charge exists. If the main decay channel of the Q ball is to fermions, the universe will be reheated slowly via surface evaporation.

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Kari Enqvist, Shinta Kasuya, Anupam Mazumdar. 2002-06-26. Inflatonic Solitons In Running Mass Inflation. https://doi.org/10.1103/physrevd.66.043505

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