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arXiv · 2112.11536

Quintessential inflation and nonlinear effects of the tachyonic trap mechanism

Mindaugas Karčiauskas·Stanislav Rusak·Alejandro Saez
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Abstract

With the help of the tachyonic trapping mechanism one can potentially solve a number of problems affecting quintessential inflation models. In this mechanism we introduce a trapping field with a spontaneous symmetry breaking potential. When the quintessential inflaton passes the critical point, a sudden burst of particle production is able to reheat the Universe and trap the inflaton away from theminimum of its potential. However, self-interactions of the trapping field suppress particle production and reduce the efficiency of this process. We develop a method to compute the magnitude of the suppression and explore the parameter space in which the mechanism can be applied effectively.

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Mindaugas Karčiauskas, Stanislav Rusak, Alejandro Saez. 2021-12-21. Quintessential inflation and nonlinear effects of the tachyonic trap mechanism. https://doi.org/10.1103/physrevd.105.043535

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