TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.17.5.133
TI  - Extremality as a consistency condition on subregion duality
PY  - 2024/11/13
UR  - https://scipost.org/SciPostPhys.17.5.133
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 17
IS  - 5
SP  - 133
A1  - Soni, Ronak M.
AB  - 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.
ER  -

@Article{10.21468/SciPostPhys.17.5.133,
	title={{Extremality as a consistency condition on subregion duality}},
	author={Ronak M. Soni},
	journal={SciPost Phys.},
	volume={17},
	pages={133},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.17.5.133},
	url={https://scipost.org/10.21468/SciPostPhys.17.5.133},
}