On stochastic effects and primordial black-hole formation
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: email@example.com
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