Entropic Force Scenarios and Eternal Inflation

Details Entropic Force Scenarios and Eternal Inflation Entropic Force Scenarios and Eternal Inflation

2011-07-06

arxiv.org/abs/1107.1013v2

Phys. Rev. D 85, 043504 (2012)

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, no figure

Scientific paper

10.1103/PhysRevD.85.043504

We examine various entropic inflation scenarios, under the light of eternality. After describing the inflation realization and the normal condition for inflation to last at the background level, we investigate the conditions for eternal inflation with the effect of thermal fluctuations produced from standard radiation and from the holographic screen. Furthermore, we incorporate stochastic quantum fluctuations through a phenomenological, Langevin analysis, studying whether they can affect the inflation eternality. In single-holographic-screen scenarios eternality can be easily obtained, while in double-screen considerations inflation is eternal only in the high-energy regime. Thus, from the cosmological point of view, one should take these into account before he can consider entropic gravity as a candidate for the description of nature. However, form the string theory point of view, inflation eternality may form the background for the "Landscape" of string/M theory vacua, leading to new perspectives in entropy gravity.

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