Holographic probabilities in eternal inflation
High Energy Physics - Theory
2008-11-26 v4 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
In the global description of eternal inflation, probabilities for vacua are notoriously ambiguous. The local point of view is preferred by holography and naturally picks out a simple probability measure. It is insensitive to large expansion factors or lifetimes, and so resolves a recently noted paradox. Any cosmological measure must be complemented with the probability for observers to emerge in a given vacuum. In lieu of anthropic criteria, I propose to estimate this by the entropy that can be produced in a local patch. This allows for prior-free predictions.
Cite
@article{arxiv.hep-th/0605263,
title = {Holographic probabilities in eternal inflation},
author = {Raphael Bousso},
journal= {arXiv preprint arXiv:hep-th/0605263},
year = {2008}
}
Comments
5 pages, 3 figures. v4: published version, misprints corrected (mu -> eta)