@misc{10481/72600,
year = {2021},
month = {12},
url = {http://hdl.handle.net/10481/72600},
abstract = {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. The enhancement is maximal near the end of inflation, which result in a spectral density of Gravitational Waves (GW) peaked at frequencies f similar to O(10(5) - 10(6)) Hz today, and with an amplitude Omega(GW) similar to 10(-9). Although the frequency range is outside the reach of present and planned GW detectors, it might be reached in future high-frequency gravitational waves detectors, designed to search for cosmological stochastic GW backgrounds above MHz frequencies.},
organization = {MICINN (PID2019-105943GB-I00/AEI/10.13039/501100011033)},
organization = {Junta de Andalucía" grants P18-FR-4314 and A-FQM-211-UGR18},
publisher = {Institute of Physics},
title = {Gravity Waves and Primordial Black Holes in Scalar Warm Little Inflation},
author = {Bastero Gil, Mar and Subías Díaz-Blanco, Marta},
}