= Samuel M. Leach
{c}
{tag=Physicist}
<Samuel M. Leach> coauthored work connecting observable primordial perturbations to their production during <cosmic inflation>. The calculation asks how much expansion occurred between the generation of a mode and the end of inflation, accounting for the later cosmic history.<How long before the end of inflation were observable perturbations produced? by Andrew R. Liddle and Samuel M. Leach>[Abstract: expansion-count limits and dependence on later evolution]{ref}
The connection matters when comparing an inflationary potential with measured <spectra>: <reheating> and the intervening expansion history affect which part of a model trajectory corresponds to an observed scale.
Back to article page
