= Graceful exit from inflation
{title2=$\epsilon_H\to1$}
= Graceful exit
{synonym}
A <graceful exit from inflation> ends sustained <accelerating expansion> and connects it to a hot <radiation-dominated universe>. Crossing $\epsilon_H=1$ ends acceleration in a homogeneous expanding model; <reheating> requires an additional mechanism to transfer <inflaton> energy into other species. Pure <exponential-potential power-law inflation> keeps $\epsilon_H$ constant and its <inflaton potential> has no finite minimum, so neither an automatic endpoint nor oscillatory <reheating> follows from that potential alone.
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