The black hole interior from non-isometric codes and complexity

C Akers, N Engelhardt, D Harlow, G Penington… - Journal of High Energy …, 2024 - Springer
A bstract Quantum error correction has given us a natural language for the emergence of
spacetime, but the black hole interior poses a challenge for this framework: at late times the …

Factorization and global symmetries in holography

F Benini, C Copetti, L Di Pietro - SciPost Physics, 2023 - scipost.org
We consider toy models of holography arising from 3d Chern-Simons theory. In this context
a duality to an ensemble average over 2d CFTs has been recently proposed. We put forward …

Black hole microstate counting from the gravitational path integral

LV Iliesiu, S Murthy, GJ Turiaci - arXiv preprint arXiv:2209.13602, 2022 - arxiv.org
Reproducing the integer count of black hole micro-states from the gravitational path integral
is an important problem in quantum gravity. In this paper, we show that, by using …

Holography for people with no time

HW Lin, J Maldacena, L Rozenberg, J Shan - SciPost Physics, 2023 - scipost.org
We study the gravitational description of extremal supersymmetric black holes. We point out
that the $ AdS_2 $ near horizon geometry can be used to compute interesting observables …

An integrable road to a perturbative plateau

A Blommaert, J Kruthoff, S Yao - Journal of High Energy Physics, 2023 - Springer
A bstract As has been known since the 90s, there is an integrable structure underlying two-
dimensional gravity theories. Recently, two-dimensional gravity theories have regained an …

Holographic description of Narain CFTs and their code-based ensembles

O Aharony, A Dymarsky, AD Shapere - Journal of High Energy Physics, 2024 - Springer
A bstract We provide a precise relation between an ensemble of Narain conformal field
theories (CFTs) with central charge c= n, and a sum of (U (1)× U (1)) n Chern-Simons …

The q-Schwarzian and Liouville gravity

A Blommaert, TG Mertens, S Yao - Journal of High Energy Physics, 2024 - Springer
A bstract We present a new holographic duality between q-Schwarzian quantum mechanics
and Liouville gravity. The q-Schwarzian is a one parameter deformation of the Schwarzian …

Algebras and Hilbert spaces from gravitational path integrals: Understanding Ryu-Takayanagi/HRT as entropy without invoking holography

E Colafranceschi, X Dong, D Marolf, Z Wang - arXiv preprint arXiv …, 2023 - arxiv.org
Recent works by Chandrasekaran, Penington, and Witten have shown in various special
contexts that the quantum-corrected Ryu-Takayanagi (RT) entropy (or its covariant Hubeny …

Looking at supersymmetric black holes for a very long time

HW Lin, J Maldacena, L Rozenberg, J Shan - SciPost Physics, 2023 - scipost.org
We study correlation functions for extremal supersymmetric black holes. It is necessary to
take into account the strongly coupled nature of the boundary supergraviton mode. We …

Higher spin JT gravity and a matrix model dual

J Kruthoff - Journal of High Energy Physics, 2022 - Springer
A bstract We propose a generalization of the Saad-Shenker-Stanford duality relating matrix
models and JT gravity to the case in which the bulk includes higher spin fields. Using a PSL …