Scalar perturbations of two-dimensional Horava–Lifshitz black holes

In this article, we study the stability of black hole solutions found in the context of dilatonic Horava–Lifshitz gravity in 1 + 1 dimensions by means of the quasinormal modes approach. In order to find the corresponding quasinormal modes, we consider the perturbations of massive and massless scalar...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2016-02, Vol.76 (2), p.1, Article 75
Main Authors: Cruz, Miguel, Gonzalez-Espinoza, Manuel, Saavedra, Joel, Vargas-Arancibia, Diego
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Cosmology
Black holes
Elementary Particles
Gravity (Force)
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
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Summary:In this article, we study the stability of black hole solutions found in the context of dilatonic Horava–Lifshitz gravity in 1 + 1 dimensions by means of the quasinormal modes approach. In order to find the corresponding quasinormal modes, we consider the perturbations of massive and massless scalar fields minimally coupled to gravity. In both cases, we found that the quasinormal modes have a discrete spectrum and are completely imaginary, which leads to damping modes. For a massive scalar field and a non-vanishing cosmological constant, our results suggest unstable behavior for large values of the scalar field mass.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-016-3927-x