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Domain Wall Production During Inflationary Reheating

M. F. Parry, A. T. Sornborger

hep-pharXiv:hep-ph/9805211

Abstract

We numerically investigate the decay, via parametric resonance, of the inflaton with an m2 phi2 potential into a scalar matter field with a symmetry breaking potential. We consider the case where symmetry breaking takes place during inflation. We show that when expansion is not taken into account symmetry restoration and non-thermal defect production during reheating is possible. However in an expanding universe the fields do not spend sufficient time in the instability bands; thus symmetry restoration and subsequent domain wall production do not occur.

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