PBH formation from single-field inflation
Posted: Mon 10 Apr 2023 16:28On 03.04.2023 in the framework of Program “Zooming in on primordial black holes” were given talks by
Jun'ichi Yokoyama "Primordial Black Holes from Single-field Inflation?"
Abstract:
After generic introduction on primordial black holes (PBHs) I discuss how we may realize production of PBHs in inflationary cosmology and then consider one-loop correction to the power spectrum in such models using the standard in-in formalism. We find models based on a temporarily ultra-slow-roll regime suffers from large correction on large scales probed by cosmic microwave background radiation.
and by
Jason Kristiano "Bispectrum and one-loop correction in PBH formation from single-field inflation"
Abstract:
We calculate bispectrum of curvature perturbations in inflation models with a temporarily ultra-slow-roll regime. After careful calculations find Maldacena's consistency is satisfied in this case, too. We also calculate the one-loop correction to the power spectrum in terms of the so-called source method making use of the bispectrum. We find the result is consistent with the calculation using the in-in perturbation theory.
Their record is available by link
https://drive.google.com/file/d/1Qw3oWUwJs0oDf72gSsG-pIyS4_jiX0Ut/view
Jun'ichi Yokoyama "Primordial Black Holes from Single-field Inflation?"
Abstract:
After generic introduction on primordial black holes (PBHs) I discuss how we may realize production of PBHs in inflationary cosmology and then consider one-loop correction to the power spectrum in such models using the standard in-in formalism. We find models based on a temporarily ultra-slow-roll regime suffers from large correction on large scales probed by cosmic microwave background radiation.
and by
Jason Kristiano "Bispectrum and one-loop correction in PBH formation from single-field inflation"
Abstract:
We calculate bispectrum of curvature perturbations in inflation models with a temporarily ultra-slow-roll regime. After careful calculations find Maldacena's consistency is satisfied in this case, too. We also calculate the one-loop correction to the power spectrum in terms of the so-called source method making use of the bispectrum. We find the result is consistent with the calculation using the in-in perturbation theory.
Their record is available by link
https://drive.google.com/file/d/1Qw3oWUwJs0oDf72gSsG-pIyS4_jiX0Ut/view