Jackiw-Teitelboim model coupled to conformal matter in the semi-classical limit

Moitra, Upamanyu; Sake, Sunil Kumar; Trivedi, Sandip P.; Vishal, V.

doi:10.1007/jhep04(2020)199

Cited by 30 publications

(88 citation statements)

References 133 publications

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“…It can be done far from the black hole where the effects of quantum gravity are small, so it is unclear what could have gone wrong. An answer to this puzzle was recently proposed [4][5][6] (see also [7][8][9][10][11][12][13][14][15][16][17][18][19]). The proposal is that Hawking used the wrong formula for computing the entropy.…”

Section: Jhep05(2020)013mentioning

confidence: 99%

Replica wormholes and the entropy of Hawking radiation

et al. 2020

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The information paradox can be realized in anti-de Sitter spacetime joined to a Minkowski region. In this setting, we show that the large discrepancy between the von Neumann entropy as calculated by Hawking and the requirements of unitarity is fixed by including new saddles in the gravitational path integral. These saddles arise in the replica method as complexified wormholes connecting different copies of the black hole. As the replica number n → 1, the presence of these wormholes leads to the island rule for the computation of the fine-grained gravitational entropy. We discuss these replica wormholes explicitly in two-dimensional Jackiw-Teitelboim gravity coupled to matter.

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Section: Jhep05(2020)013mentioning

confidence: 99%

Replica wormholes and the entropy of Hawking radiation

et al. 2020

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“…To confirm our result, we can derive the position of QES in a more direct way. It is based on the observation in [28,63] that the dilaton profile can be expressed without any integrals as 27…”

Section: Simpler Derivation Of Qesmentioning

confidence: 99%

Evaporating black holes coupled to a thermal bath

Chen

Fisher

Hernandez

et al. 2021

J. High Energ. Phys.

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We study the doubly holographic model of [1] in the situation where a black hole in two-dimensional JT gravity theory is coupled to an auxiliary bath system at arbitrary finite temperature. Depending on the initial temperature of the black hole relative to the bath temperature, the black hole can lose mass by emitting Hawking radiation, stay in equilibrium with the bath or gain mass by absorbing thermal radiation from the bath. In all of these scenarios, a unitary Page curve is obtained by applying the usual prescription for holographic entanglement entropy and identifying the quantum extremal surface for the generalized entropy, using both analytical and numeric calculations. As the application of the entanglement wedge reconstruction, we further investigate the reconstruction of the black hole interior from a subsystem containing the Hawking radiation. We examine the roles of the Hawking radiation and also the purification of the thermal bath in this reconstruction.

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“…, there is a simple expression for the dilaton in term of the key function f (t) [28]. In order to find it, we note that the −− and +− components of the equations for the dilaton (2.6), have a general solution of the form…”

Section: Dilatonmentioning

confidence: 99%

Islands and Page curves for evaporating black holes in JT gravity

Hollowood

Kumar

2020

J. High Energ. Phys.

112

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The effect of a CFT shockwave on the entanglement structure of an eternal black hole in Jackiw-Teitelboim gravity, that is in thermal equilibrium with a thermal bath, is considered. The shockwave carries energy and entropy into the black hole and heats the black hole up leading to evaporation and the eventual recovery of equilibrium. We find an analytical description of the entire relaxational process within the semiclassical high temperature regime. If the shockwave is inserted around the Page time then several scenarios are possible depending on the parameters. The Page time can be delayed or hastened and there can be more than one transition. The final entropy saddle has a quantum extremal surface that generically starts inside the horizon but at some later time moves outside. In general, increased shockwave energy and slow evaporation rate favour the extremal surface to be inside the horizon. The shockwave also disrupts the scrambling properties of the black hole. The same analysis is then applied to a shockwave inserted into the extremal black hole with similar conclusions.

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Jackiw-Teitelboim model coupled to conformal matter in the semi-classical limit

Cited by 30 publications

References 133 publications

Replica wormholes and the entropy of Hawking radiation

Replica wormholes and the entropy of Hawking radiation

Evaporating black holes coupled to a thermal bath

Islands and Page curves for evaporating black holes in JT gravity

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