# Inconsistency of islands in theories with long-range gravity

@article{Geng2022InconsistencyOI, title={Inconsistency of islands in theories with long-range gravity}, author={Hao Geng and Andreas Karch and Carlos Perez-Pardavila and S. Raju and Lisa Randall and Marcos Riojas and Sanjit Shashi}, journal={Journal of High Energy Physics}, year={2022}, volume={2022}, pages={1-46} }

In ordinary gravitational theories, any local bulk operator in an entanglement wedge is accompanied by a long-range gravitational dressing that extends to the asymptotic part of the wedge. Islands are the only known examples of entanglement wedges that are disconnected from the asymptotic region of spacetime. In this paper, we show that the lack of an asymptotic region in islands creates a potential puzzle that involves the gravitational Gauss law, independently of whether or not there is a non…

## 42 Citations

Islands and Light Gravitons in type IIB String Theory

- Physics
- 2022

We consider the setup of a black hole in AdS 4 coupled to an external bath, embedded in type IIB string theory. We study quantum extremal islands in these backgrounds, in relation to the existence of…

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Abstract
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In an ordinary quantum field theory, the ‘split property’ implies that the state of the system can be specified independently on a bounded subregion of a Cauchy slice and its complement. This…

Holography from the Wheeler-DeWitt equation

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- 2022

Abstract
In a theory of quantum gravity, states can be represented as wavefunctionals that assign an amplitude to a given configuration of matter fields and the metric on a spatial slice. These…

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- Physics
- 2021

A longstanding question in quantum gravity regards the localization of quantum information; one way to formulate this question is to ask how subsystems can be defined in quantumgravitational systems.…

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- PhysicsPhysical Review D
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We present a stringy realization of quantum field theory ensembles in D ≤ 4 spacetime dimensions, thus realizing a disorder averaging over coupling constants. When each member of the ensemble is a…

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- Physics
- 2021

Quantum gravitational effects can become important at low energy if the wavefunction of the metric field fails to be peaked around a classical configuration. We try to understand such deviations from…

On the assumptions leading to the information loss paradox

- PhysicsJournal of High Energy Physics
- 2021

Abstract
The information loss paradox is usually stated as an incompatibility between general relativity and quantum mechanics. However, the assumptions leading to the problem are often overlooked…

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