Making predictions in the multiverse

By Ben Freivogel. 2011

154 citations recorded by the source corpus.

I describe reasons to think we are living in an eternally inflating multiverse where the observable ‘constants’ of nature vary from place to place. The major obstacle to making predictions in this context is that we must regulate the infinities of eternal inflation. I review a number of proposed regulators, or measures. Recent work has ruled out a number of measures by showing that they conflict with observation, and focused attention on a few proposals. Further, several different measures have been shown to be equivalent. I describe some of the many nontrivial tests these measures will face as we learn more from theory, experiment and observation.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/0870240ac60cafbceb4e919ac3c7db92d2cae837

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In Astronomy and Astrophysics

1. David I. Kaiser
2. A. Guth
3. Y. Nomura
4. Andrei Linde

Citations in the corpus

• Inflationary paradigm after Planck 2013 (2013, background): “D 76, 043513 (2007) [hep-th/0702115 [HEP-TH]]; R. Bousso, B. Freivogel, 11 S. Leichenauer and V. Rosenhaus, “Geometric origin of coincidences and hierarchies in the landscape,” Phys.”