| Euclidean wormholes in D>2 quantum gravity |
| Tom Hartman, Cornell University |
| Event Type: HEP Seminar |
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| Time: 2:00 PM - 3:30 PM |
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| Location: 726 Broadway, 940, CCPP Seminar |
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| Abstract: Euclidean wormholes have played an important role in recent progress on 2D gravity and on black hole information in higher dimensions. However, higher topology spacetimes must be interpreted carefully, or they lead to a factorization problem that violates quantum mechanics and AdS/CFT. I will describe the construction of on-shell wormholes in higher dimensions and their interpretation via coarse graining in the dual CFT. In 3D gravity, wormholes correspond to averaged solutions of the 2D conformal bootstrap equations and encode the statistics of OPE coefficients. Single-boundary wormholes lead to a controlled version of the Coleman-Giddings-Strominger mechanism, where the effective gravitational theory has random coupling constants. Link to the Event Video |