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 …

No Page curves for the de Sitter horizon

J Kames-King, EMH Verheijden… - Journal of High Energy …, 2022 - Springer
A bstract We investigate the fine-grained entropy of the de Sitter cosmological horizon.
Starting from three-dimensional pure de Sitter space, we consider a partial reduction …

An outsider's perspective on information recovery in de Sitter space

L Aalsma, SE Aguilar-Gutierrez, W Sybesma - Journal of High Energy …, 2023 - Springer
A bstract Entanglement islands play a crucial role in our understanding of how Hawking
radiation encodes information in a black hole, but their relevance in cosmological …

Dissecting the ensemble in JT gravity

A Blommaert - Journal of High Energy Physics, 2022 - Springer
A bstract We calculate bulk and boundary correlators in JT gravity by summing over
geometries. The answers are reproduced by computing suitable ensemble averages of …

Aspects of Jackiw-Teitelboim gravity in Anti-de Sitter and de Sitter spacetime

U Moitra, SK Sake, SP Trivedi - Journal of High Energy Physics, 2022 - Springer
A bstract We discuss JT gravity in AdS and dS space in the second order formalism. For the
pure dS JT theory without matter, we show that the path integral gives rise in general to the …

JT gravity in de Sitter space and the problem of time

KK Nanda, SK Sake, SP Trivedi - Journal of High Energy Physics, 2024 - Springer
A bstract We discuss the canonical quantisation of JT gravity in de Sitter space, following
earlier work by Henneaux, with particular attention to the problem of time. Choosing the …

Unruh detectors and quantum chaos in JT gravity

A Blommaert, TG Mertens, H Verschelde - Journal of High Energy Physics, 2021 - Springer
A bstract We identify the spectral properties of Hawking-Unruh radiation in the eternal black
hole at ultra low energies as a probe for the chaotic level statistics of quantum black holes …