A smooth exit from eternal inflation? (original) (raw)
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Abstract
The usual theory of inflation breaks down in eternal inflation. We derive a dual description of eternal inflation in terms of a deformed Euclidean CFT located at the threshold of eternal inflation. The partition function gives the amplitude of different geometries of the threshold surface in the no-boundary state. Its local and global behavior in dual toy models shows that the amplitude is low for surfaces which are not nearly conformal to the round three-sphere and essentially zero for surfaces with negative curvature. Based on this we conjecture that the exit from eternal inflation does not produce an infinite fractal-like multiverse, but is finite and reasonably smooth.
Publication:
Journal of High Energy Physics
Pub Date:
April 2018
DOI:
arXiv:
Bibcode:
Keywords:
- AdS-CFT Correspondence;
- Gauge-gravity correspondence;
- Models of Quantum Gravity;
- Spacetime Singularities;
- High Energy Physics - Theory;
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- General Relativity and Quantum Cosmology
E-Print:
15 pages