Physics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ijtp...50.1776z&link_type=abstract
International Journal of Theoretical Physics, Volume 50, Issue 6, pp.1776-1784
Physics
1
Hořava-Lifshitz Gravity, Ir Modified Hořava-Lifshitz Gravity, Damour-Ruffini Method, Kehagias And Sfetsos Black Hole, Black Hole Thermodynamics
Scientific paper
Recently, a renormalizable model of gravity has been proposed by Hoř ava, which might be an ultraviolet completion of general relativity and it reduces to Einstein gravity with a non-vanishing cosmological constant in infrared approximation. Kehagias and Sfetsos have added a relevant operator proportional to the 3D geometry Ricci scalar to the original Hoř ava-Lifshitz theory action, which "softly" deviated from detailed-balance. This does not modify the ultraviolet properties of the theory. However, it modifies the infrared approximation and the Minkowski vacuum can be allowed in the infrared Hořava-Lifshitz gravity theory. The static spherical symmetric black hole solutions have been obtained in the Hořava-Lifshitz and infrared Hořava-Lifshitz gravity theory. Based on the metric of the black holes, Hawking radiation of massless scalar particles is investigated using Damour-Ruffini method. Then the black hole thermodynamics property will also be discussed.
Liu Wen-Biao
Zhou Shi-Wei
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