Open AccessHawking radiation of nonsingular black holes in two dimensions
Author(s) -
Damien A. Easson
Publication year - 2003
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2003/02/037
Subject(s) - hawking radiation , physics , micro black hole , white hole , sonic black hole , black hole (networking) , fuzzball , schwarzschild radius , extremal black hole , nonsingular black hole models , black hole thermodynamics , theoretical physics , charged black hole , classical mechanics , horizon , gravitation , gravitational collapse , astronomy , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol
In this letter we study the process of Hawking radiation of a black holeassuming the existence of a limiting physical curvature scale. The particularmodel is constructed using the Limiting Curvature Hypothesis (LCH) and in thecontext of two-dimensional dilaton gravity. The black hole solution exhibitsproperties of the standard Schwarzschild solution at large values of the radialcoordinate. However, near the center, the black hole is nonsingular and themetric becomes that of de Sitter spacetime. The Hawking temperature iscalculated using the method of complex paths. We find that such black holesradiate eternally and never completely evaporate. The final state is aneternally radiating relic, near the fundamental scale, which should make aviable dark matter candidate. We briefly comment on the black hole informationloss problem and the production of such black holes in collider experiments.Comment: 8 pages, 4 figures; minor revisions; references added; version to appear in JHE
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom