Information radiation in BCFT models of black holes
By M. Rozali, J. Sully, Mark Van Raamsdonk, Christopher Waddell, David Wakeham. Journal of High Energy Physics, 2019
174 citations recorded by the source corpus.
In this note, following [1–3], we introduce and study various holographic systems which can describe evaporating black holes. The systems we consider are boundary conformal field theories for which the number of local degrees of freedom on the boundary (cbdy) is large compared to the number of local degrees of freedom in the bulk CFT (cbulk). We consider states where the boundary degrees of freedom on their own would describe an equilibrium black hole, but the coupling to the bulk CFT degrees of freedom allows this black hole to evaporate. The Page time for the black hole is controlled by the ratio cbdy/cbulk. Using both holographic calculations and direct CFT calculations, we study the evolution of the entanglement entropy for the subset of the radiation system (i.e. the bulk CFT) at a distance d > a from the boundary. We find that the entanglement entropy for this subsystem increases until time a + tPage and then undergoes a phase transition after which the entanglement wedge of the radiation system includes the black hole interior. Remarkably, this occurs even if the radiation system is initially at the same temperature as the black hole so that the two are in thermal equilibrium. In this case, even though the black hole does not lose energy, it “radiates” information through interaction with the radiation system until the radiation system contains enough information to reconstruct the black hole interior.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/bce4f24d25744b59b5d071203a74e927d58f4113
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
In Statistical and Nonlinear Physics
Citations in the corpus
- Massive islands (2020, background): “At late times the entanglement entropy of the radiation system R is dominated by an island containing the braneworld black hole! Interesting enough, this same story can also be understood from the BCFT point of view, description 1), as recently demonstrated in [37].”
- Information Transfer with a Gravitating Bath (2020, background): “Most work on islands in higher dimensions [8, 11–15, 21–25], as well as some of the results in lower dimensions [26–29], have been obtained in the context of the RandallSundrum (RS) braneworlds [30] with subcritical tension branes [31, 32], also known as the Karch-Randall (KR) braneworlds.”
- Replica wormholes and the black hole interior (2019, methodology): “(9)A similar model has recently been discussed independently in [19].”
- Replica wormholes and the entropy of Hawking radiation (2019, background): “The same answer for the entropy was obtained holographically in [6, 15, 16].”
- Quantum extremal islands made easy. Part II. Black holes on the brane (2020, background): “While limited results have been obtained on this front [14, 30–34], we focus here on the holographic model which we introduced in [1].”
- Entanglement islands in higher dimensions (2019, background): “See also [19] and the recent paper [39].”
- Quantum extremal islands made easy. Part I. Entanglement on the brane (2020, background): “The large ratio of the central charges can also be heuristically understood requiring that energy and information are only leaking very slowly from the dynamical gravity region into the bath [28].”
- Islands in cosmology (2020, background): “It also has support from holographic arguments [13, 45].”