A Hagedorn temperature in post-inflationary dynamics?
Prashanth Jaikumar, Anupam Mazumdar
Abstract
We consider the possibility of regarding the maximum temperature of a plasma of inflaton decay products as a Hagedorn temperature connected with the transition from an inflaton-dominated epoch to a radiation-dominated universe. Employing a ``bottom-up'' approach to inflaton decay, we show that the limiting temperature T H mϕ, as obtained from a numerical analysis of the evolution equations, can also be understood theoretically in a Hagedorn picture of the phase transition.
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