Scalar perturbations of two-dimensional Horava–Lifshitz black holes

被引：0
作者：
Miguel Cruz
Manuel Gonzalez-Espinoza
Joel Saavedra
Diego Vargas-Arancibia
机构：
[1] Pontificia Universidad Católica de Valparaíso,Instituto de Física
来源：
The European Physical Journal C | 2016年 / 76卷
关键词：
Black Hole; Scalar Field; Quasinormal Mode; Scalar Perturbation; Outgoing Wave;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this article, we study the stability of black hole solutions found in the context of dilatonic Horava–Lifshitz gravity in 1+1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$1+1$$\end{document} 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.
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