https://doi.org/10.1140/epjc/s10052-019-7466-0
Letter
On stochastic effects and primordial black-hole formation
1
Department of Physics, The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Center, Stockholm University, Roslagstullsbacken 21, SE-106 91, Stockholm, Sweden
2
Department of Physics, University of Michigan, Ann Arbor, MI, 48109, USA
* e-mail: florian.kuhnel@fysik.su.se
Received:
24
July
2019
Accepted:
6
November
2019
Published online:
21
November
2019
The effect of large quantum fluctuations on primordial black-hole formation for inflationary models with a quasi-inflection point is investigated. By using techniques of stochastic inflation in combination with replica field theory and the Feynman–Jensen variational method, it is non-perturbatively demonstrated that the abundance of primordial black holes is amplified by several orders of magnitude as compared to the classical computation.
© The Author(s), 2019
