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Barbado, L. C. and Barceló, C. and Garay Elizondo, Luis Javier and Jannes, Gil (2011) The trans-Planckian problem as a guiding principle. Journal of high energy physics (11). ISSN 1126-6708
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Official URL: http://dx.doi.org/10.1007/JHEP11(2011)112
Abstract
We use the avoidance of the trans-Planckian problem of Hawking radiation as a guiding principle in searching for a compelling scenario for the evaporation of black holes or black-hole-like objects. We argue that there exist only three possible scenarios, depending on whether the classical notion of long-lived horizon is preserved by high-energy physics and on whether the dark and compact astrophysical objects that we observe have long-lived horizons in the first place. Along the way, we find that i) a theory with high-energy superluminal signalling and a long-lived trapping horizon would be extremely unstable in astrophysical terms and that i i) stellar pulsations of objects hovering right outside but extremely close to their gravitational radius can result in a mechanism for Hawking-like emission.
Item Type: | Article |
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Additional Information: | © Int School Advanced Studies. |
Uncontrolled Keywords: | Black-Hole evaporation; Sonic analog; Radiation; Entropy |
Subjects: | Sciences > Physics > Physics-Mathematical models Sciences > Physics > Mathematical physics |
ID Code: | 29748 |
Deposited On: | 24 Apr 2015 09:57 |
Last Modified: | 10 Dec 2018 15:05 |
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