Half-wormholes in nearly AdS$_2$ holography
Antonio M. García-García, Victor Godet
SciPost Phys. 12, 135 (2022) · published 20 April 2022
- doi: 10.21468/SciPostPhys.12.4.135
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Abstract
We find half-wormhole solutions in Jackiw-Teitelboim gravity by allowing the geometry to end on a spacetime D-brane with specific boundary conditions. This theory also contains a Euclidean wormhole which leads to a factorization problem. We propose that half-wormholes provide a gravitational picture for how factorization is restored and show that the Euclidean wormhole emerges from averaging over the boundary conditions. The wormhole is known to be dual to a Sachdev-Ye-Kitaev (SYK) model with random complex couplings. We find that the free energy of the half-wormhole is strikingly similar to that of a single realization of this SYK model. These results suggest that the gravitational path integral computes an average over spacetime D-brane boundary conditions.
Cited by 13
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 Antonio Garcia-Garcia,
- 2 Victor Godet
- 1 上海交通大学 / Shanghai Jiao Tong University [SJTU]
- 2 टाटा मूलभूत अनुसंधान संस्थान / Tata Institute of Fundamental Research [TIFR]
- Department of Atomic Energy, Government of India
- National Key Research and Development Program of China (through Organization: Ministry of Science and Technology of the People's Republic of China [MOST])
- National Natural Science Foundation of China [NSFC]