Conformal Killing horizons and their thermodynamics

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Nielsen, A.B.; Shoom, A.A.: Conformal Killing horizons and their thermodynamics. In: Classical and Quantum Gravity 35 (2018), Nr. 10, 105008. DOI: https://doi.org/10.1088/1361-6382/aab505

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Abstract: 
Certain dynamical black hole solutions can be mapped to static spacetimes by conformal metric transformations. This mapping provides a physical link between the conformal Killing horizon of the dynamical black hole and the Killing horizon of the static spacetime. Using the Vaidya spacetime as an example, we show how this conformal relation can be used to derive thermodynamic properties of such dynamical black holes. Although these horizons are defined quasi-locally and can be located by local experiments, they are distinct from other popular notions of quasi-local horizons such as apparent horizons. Thus in the dynamical Vaidya spacetime describing constant accretion of null dust, the conformal Killing horizon, which is null by construction, is the natural horizon to describe the black hole. © 2018 IOP Publishing Ltd.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 99 80.49%
2 image of flag of United States United States 6 4.88%
3 image of flag of Norway Norway 6 4.88%
4 image of flag of China China 4 3.25%
5 image of flag of Romania Romania 2 1.63%
6 image of flag of India India 2 1.63%
7 image of flag of Vietnam Vietnam 1 0.81%
8 image of flag of Hungary Hungary 1 0.81%
9 image of flag of Chile Chile 1 0.81%
10 image of flag of Canada Canada 1 0.81%

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