Inconsistency of islands in theories with long-range gravity

H Geng, A Karch, C Perez-Pardavila, S Raju… - Journal of High Energy …, 2022 - Springer
A bstract 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 …

Information paradox and its resolution in de Sitter holography

H Geng, Y Nomura, HY Sun - Physical Review D, 2021 - APS
We formulate a version of the information paradox in de Sitter spacetime and show that it is
solved by the emergence of entanglement islands in the context of the De Sitter/de Sitter …

Entanglement phase structure of a holographic BCFT in a black hole background

H Geng, A Karch, C Perez-Pardavila, S Raju… - Journal of High Energy …, 2022 - Springer
A bstract We compute holographic entanglement entropy for subregions of a BCFT thermal
state living on a nongravitating black hole background. The system we consider is doubly …

Islands in charged linear dilaton black holes

B Ahn, SE Bak, HS Jeong, KY Kim, YW Sun - Physical Review D, 2022 - APS
We investigate the Page curve for a nonstandard black hole which is asymptotically
nonflat/AdS/dS. For this purpose, we apply the island prescription to the charged linear …

Holographic BCFTs and communicating black holes

H Geng, S Lüst, RK Mishra, D Wakeham - Journal of High Energy Physics, 2021 - Springer
A bstract We study the AdS/BCFT duality between two-dimensional conformal field theories
with two boundaries and three-dimensional anti-de Sitter space with two Karch-Randall …

Dirichlet baths and the not-so-fine-grained Page curve

K Ghosh, C Krishnan - Journal of High Energy Physics, 2021 - Springer
A bstract We present a doubly holographic prescription for computing entanglement entropy
on a gravitating brane. It involves a Ryu-Takayanagi surface with a Dirichlet anchoring …

The universality of islands outside the horizon

S He, Y Sun, L Zhao, YX Zhang - Journal of High Energy Physics, 2022 - Springer
A bstract We systematically calculate the quantum extremal surface (QES) associated with
Hawking radiation for general D-dimensional (D≥ 2) asymptotically flat (or AdS) eternal …

The price of curiosity: information recovery in de Sitter space

L Aalsma, W Sybesma - Journal of High Energy Physics, 2021 - Springer
A bstract Recent works have revealed that quantum extremal islands can contribute to the
fine-grained entropy of black hole radiation reproducing the unitary Page curve. In this …

Page curves for a family of exactly solvable evaporating black holes

X Wang, R Li, J Wang - Physical Review D, 2021 - APS
We study the entanglement entropy of a one-parameter family of exactly solvable gravities in
the two-dimensional asymptotically flat space. The islands and Page curves of eternal …

Entropy of Hawking radiation for two-sided hyperscaling violating black branes

F Omidi - Journal of High Energy Physics, 2022 - Springer
A bstract In this paper, we study the von Neumann entropy of Hawking radiation SR for a d+
2-dimensional Hyperscaling Violating (HV) black brane which is coupled to two Minkowski …