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Inflatonic solitons in running mass inflation

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Article number043505
<mark>Journal publication date</mark>9/08/2002
<mark>Journal</mark>Physical Review D
Issue number4
Volume66
Number of pages9
<mark>State</mark>Published
<mark>Original language</mark>English

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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© 2002 The American Physical Society

13 pages, RevTeX, 12 postscript figures included