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 …

Entanglement entropy analysis of dyonic black holes using doubly holographic theory

HS Jeong, KY Kim, YW Sun - Physical Review D, 2023‏ - APS
We investigate the entanglement between the eternal black hole and Hawking radiation. For
this purpose, we utilize the doubly holographic theories and study the entanglement entropy …

Double holography of entangled universes

RC Myers, SM Ruan, T Uga** - Journal of High Energy Physics, 2024‏ - Springer
A bstract We employ double holography to examine a system of two entangled gravitating
universes that live on two codimension-one branes in an asymptotically AdS 3 spacetime …

Ownerless island and partial entanglement entropy in island phases

D Basu, J Lin, Y Lu, Q Wen - SciPost Physics, 2023‏ - scipost.org
In the context of partial entanglement entropy (PEE), we study the entanglement structure of
the island phases realized in several 2-dimensional holographic set-ups. From a pure …

Defect extremal surfaces for entanglement negativity

D Basu, H Parihar, V Raj, G Sengupta - Physical Review D, 2023‏ - APS
We propose a doubly holographic version of the semiclassical island formula for the
entanglement negativity in the framework of the defect AdS/BCFT correspondence where …

Islands for entanglement negativity in communicating black holes

M Afrasiar, JK Basak, A Chandra, G Sengupta - Physical Review D, 2023‏ - APS
We obtain the holographic entanglement negativity for bipartite mixed states at a finite
temperature in baths described by conformal field theories dual to configurations involving …

Multiverse in Karch-Randall Braneworld

G Yadav - Journal of High Energy Physics, 2023‏ - Springer
A bstract In this paper, we propose a model based on wedge holography that can describe
the multiverse. In wedge holography, we consider two gravitating baths, one of which has …

Reflected entropy in a BCFT on a black hole background

D Basu, H Chourasiya, V Raj, G Sengupta - Journal of High Energy …, 2024‏ - Springer
A bstract We obtain the reflected entropy for bipartite mixed state configurations involving
two disjoint and adjacent subsystems in a two dimensional boundary conformal field theory …

Entanglement of defect subregions in double holography

Y Liu, Q Chen, Y Ling, C Peng, Y Tian… - Journal of High Energy …, 2024‏ - Springer
A bstract In the framework of double holography, we investigate the entanglement behavior
of a subregion of the defect on the boundary of a CFT 3. The entanglement entropy of this …

Reflected entropy for communicating black holes. Part I. Karch-Randall braneworlds

M Afrasiar, JK Basak, A Chandra… - Journal of High Energy …, 2023‏ - Springer
A bstract We obtain the reflected entropy for bipartite mixed state configurations of two
adjacent and disjoint intervals at a finite temperature in BCFT 2 s with two distinct …