Quantum extremal islands made easy. Part I. Entanglement on the brane

HZ Chen, RC Myers, D Neuenfeld, IA Reyes… - Journal of High Energy …, 2020 - Springer
A bstract Recent progress in our understanding of the black hole information paradox has
lead to a new prescription for calculating entanglement entropies, which involves special …

Reflected entropy in random tensor networks

C Akers, T Faulkner, S Lin, P Rath - Journal of High Energy Physics, 2022 - Springer
A bstract In holographic theories, the reflected entropy has been shown to be dual to the
area of the entanglement wedge cross section. We study the same problem in random …

Islands for entanglement negativity

JK Basak, D Basu, V Malvimat, H Parihar, G Sengupta - SciPost Physics, 2022 - scipost.org
We advance two alternative proposals for the island contributions to the entanglement
negativity of various pure and mixed state configurations in quantum field theories coupled …

Entanglement wedge cross sections require tripartite entanglement

C Akers, P Rath - Journal of High Energy Physics, 2020 - Springer
A bstract We argue that holographic CFT states require a large amount of tripartite
entanglement, in contrast to the conjecture that their entanglement is mostly bipartite. Our …

New holographic generalization of entanglement entropy

Y Nakata, T Takayanagi, Y Taki, K Tamaoka, Z Wei - Physical Review D, 2021 - APS
We introduce a new quantity, called pseudo-entropy, as a generalization of entanglement
entropy via postselection. We expect this quantity to provide a new class of order parameters …

Entanglement and geometry from subalgebras of the Virasoro algebra

P Caputa, D Ge - Journal of High Energy Physics, 2023 - Springer
A bstract In this work we study families of generalised coherent states constructed from SL
(2, R) subalgebras of the Virasoro algebra in two-dimensional conformal field theories. We …

Reflected entropy and timelike entanglement in -deformed

D Basu, V Raj - Physical Review D, 2024 - APS
We develop a covariant formalism to investigate the mixed state entanglement between time-
dependent boosted subsystems in TT¯-deformed CFT 2 s through the reflected entropy. To …

Reflected entropy in random tensor networks. Part II. A topological index from canonical purification

C Akers, T Faulkner, S Lin, P Rath - Journal of High Energy Physics, 2023 - Springer
A bstract In ref.[1], we analyzed the reflected entropy (SR) in random tensor networks
motivated by its proposed duality to the entanglement wedge cross section (EW) in …

Multipartitioning topological phases by vertex states and quantum entanglement

Y Liu, R Sohal, J Kudler-Flam, S Ryu - Physical Review B, 2022 - APS
We discuss multipartitions of the gapped ground states of (2+ 1)-dimensional topological
liquids into three (or more) spatial regions that are adjacent to each other and meet at points …

Universal entanglement signatures of interface conformal field theories

Q Tang, Z Wei, Y Tang, X Wen, W Zhu - Physical Review B, 2024 - APS
An interface connecting two distinct conformal field theories hosts rich critical behaviors. In
this paper, we investigate the entanglement properties of such critical interface theories for …