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arxiv: hep-th/0605263 · v4 · submitted 2006-05-26 · ✦ hep-th · astro-ph· gr-qc· hep-ph

Holographic probabilities in eternal inflation

classification ✦ hep-th astro-phgr-qchep-ph
keywords eternalinflationlocalmeasureprobabilitiesprobabilityallowsambiguous
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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.

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