= Lev Kofman
{c}
{tag=Physicist}
<Lev Kofman> co-developed models of <energy> transfer after <cosmic inflation>, including particle production amplified by an oscillating <inflaton>. The <reheating> analysis treats effects beyond a purely perturbative decay calculation, with <parametric resonance> and the response of the produced particles changing the subsequent evolution.<Towards the Theory of Reheating After Inflation by Lev Kofman and others>[Abstract: resonant particle production, expansion and backreaction]{ref}
The physical lesson is that ending accelerated expansion does not by itself establish a thermal universe. One must explain how <energy> moves into other <degrees of freedom> and how the resulting distribution evolves.
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