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Extremality as a Consistency Condition on Subregion Duality
by Ronak M Soni
Submission summary
| Authors (as registered SciPost users): | Ronak Soni |
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| Preprint Link: | https://arxiv.org/abs/2403.19562v1 (pdf) |
| Date submitted: | 2024-04-05 01:11 |
| Submitted by: | Soni, Ronak |
| Submitted to: | SciPost Physics |
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| Academic field: | Physics |
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| Approach: | Theoretical |
Abstract
In JT gravity coupled to a CFT, I argue without using the path integral that the entanglement wedge of a boundary region is bounded by a quantum extremal surface (QES). For any candidate not bounded by a QES, a unitary in the complement can make reconstruction within the candidate inconsistent with boundary causality. The case without islands is a direct consequence of subregion duality, and the case with islands can also be dealt with with a stronger assumption.
Current status:
In refereeing