Islands in asymptotically flat 2D gravity
By Thomas Hartman, Edgar Shaghoulian, Andrew Strominger. Journal of High Energy Physics, 2020
158 citations recorded by the source corpus.
The large-N limit of asymptotically flat two-dimensional dilaton gravity coupled to N free matter fields provides a useful toy model for semiclassical black holes and the information paradox. Analyses of the asymptotic information flux as given by the entanglement entropy show that it follows the Hawking curve, indicating that information is destroyed in these models. Recently, motivated by developments in AdS/CFT, a semiclassical island rule for entropy has been proposed. We define and compute the island rule entropy for black hole formation and evaporation in the large-N RST model of dilaton gravity and show that, in contrast, it follows the unitary Page curve. The relation of these two observations, and interesting properties of the dilaton gravity island rule, are discussed.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/5a6eae3f9e82ffc31d01a3a90f28e6cd37347ebf
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Citations in the corpus
- Inconsistency of islands in theories with long-range gravity (2021, methodology): “An extension of our analysis to 1 + 1 dimensional theories of gravity would allow contact with the significant literature where islands have been studied using JT gravity [4, 6] and other 1 + 1 dimensional models [59].”
- Quantum extremal islands made easy. Part I. Entanglement on the brane (2020, background): “These islands are a remnant of replica wormholes in the limit n → 1 [26, 32].”
- Quantum extremal islands made easy. Part II. Black holes on the brane (2020, background): “This approach has now also been applied in a variety of different situations involving black holes [22–50] and cosmology [51–58].”