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Title: Eternal inflation with arrival terminals

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Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 91; Journal Issue: 2; Journal ID: ISSN 1550-7998
American Physical Society
Country of Publication:
United States

Citation Formats

Stoltenberg, Henry, and Albrecht, Andreas. Eternal inflation with arrival terminals. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.023503.
Stoltenberg, Henry, & Albrecht, Andreas. Eternal inflation with arrival terminals. United States. doi:10.1103/PhysRevD.91.023503.
Stoltenberg, Henry, and Albrecht, Andreas. 2015. "Eternal inflation with arrival terminals". United States. doi:10.1103/PhysRevD.91.023503.
title = {Eternal inflation with arrival terminals},
author = {Stoltenberg, Henry and Albrecht, Andreas},
abstractNote = {},
doi = {10.1103/PhysRevD.91.023503},
journal = {Physical Review D},
number = 2,
volume = 91,
place = {United States},
year = 2015,
month = 1

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.91.023503

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  • We study various probability measures for eternal inflation by applying their regularization prescriptions to models where inflation is not eternal. For simplicity we work with a toy model describing inflation that can interpolate between eternal and non-eternal inflation by continuous variation of a parameter. We investigate whether the predictions of four different measures (proper time, scale factor cutoff, stationary and causal diamond) change continuously with the change of this parameter. We will show that only for the stationary measure the predictions change continuously. For the proper-time and the scale factor cutoff, the predictions are strongly discontinuous. For the causal diamondmore » measure, the predictions are continuous only if the stage of the slow-roll inflation is sufficiently long.« less
  • No abstract prepared.
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  • It has recently been shown that in single field slow-roll inflation the total volume cannot grow by a factor larger than e{sup S{sub dS}/2} without becoming infinite. The bound is saturated exactly at the phase transition to eternal inflation where the probability to produce infinite volume becomes non zero. We show that the bound holds sharply also in any space-time dimensions, when arbitrary higher-dimensional operators are included and in the multi-field inflationary case. The relation with the entropy of de Sitter and the universality of the bound strengthen the case for a deeper holographic interpretation. As a spin-off we providemore » the formalism to compute the probability distribution of the volume after inflation for generic multi-field models, which might help to address questions about the population of vacua of the landscape during slow-roll inflation.« less