Corpuscular consideration of eternal inflation

The European Physical Journal C

Florian Kühnel¹  Marit Sandstad² 

[1] Department of Physics, The Oskar Klein Centre for Cosmoparticle Physics, Stockholm University, AlbaNova, 106 91, Stockholm, Sweden;Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029, Blindern, 0315, Oslo, Norway;

关键词: Black Hole;    Einstein Condensate;    Quantum Fluctuation;    Depletion Effect;    Classical Flow;   

DOI  :  10.1140/epjc/s10052-015-3736-7

来源: Springer

【 摘 要 】

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.

【 授权许可】

CC BY