https://doi.org/10.1140/epjc/s10052-015-3736-7
Regular Article - Theoretical Physics
Corpuscular consideration of eternal inflation
1
Department of Physics, The Oskar Klein Centre for Cosmoparticle Physics, Stockholm University, AlbaNova, 106 91, Stockholm, Sweden
2
Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029, Blindern, 0315, Oslo, Norway
* e-mail: florian.kuhnel@fysik.su.se
Received:
14
August
2015
Accepted:
16
October
2015
Published online:
26
October
2015
We review the paradigm of eternal inflation in the light of the recently proposed corpuscular picture of space-time. Comparing the strength of the average fluctuation of the field up its potential with that of quantum depletion, we show that the latter can be dominant. We then study the full respective distributions in order to show that the fraction of the space-time which has an increasing potential is always below the eternal-inflation threshold. We prove that for monomial potentials eternal inflaton is excluded. This is likely to hold for other models as well.
© SIF and Springer-Verlag Berlin Heidelberg, 2015
