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2021

Gravity Waves and Primordial Black Holes in Scalar Warm Little Inflation

Bastero-Gil, Mar, Díaz-Blanco, Marta Subías

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In warm inflation, dissipation due to the interactions of the inflaton field to other light degrees of freedom leads naturally to the enhancement of the primordial spectrum during the last 10-20 efolds of inflation.

We study this effect in a variant of the Warm Little Inflaton model, where the inflaton couples to light scalars, with a quartic chaotic potential.
These large fluctuations on re-entry will form light, evaporating Primordial Black Holes, with masses lighter than $10^6$ g.
But at the same time they will act as a source for the tensors at second order.

Gravity Waves and Primordial Black Holes in Scalar Warm Little Inflation · Around

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