(In)stability and excitation of modes in (asymptotically) Anti-de Sitter space-tim...
Fluid/gravity correspondence in the membrane paradigm and generalized black branes
| Full text | |
| Author(s): |
Ma, Hong
Total Authors: 1
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| Document type: | Journal article |
| Source: | COMMUNICATIONS IN THEORETICAL PHYSICS; v. 69, n. 2, p. 9-pg., 2018-02-01. |
| Abstract | |
Quasinormal modes (QNMs) for Dirac perturbations of f(R) black holes (BHs) are described in this paper, involving two types of f(R) solution: f(R) (Schwarzschild) BHs and f(R) (Maxwell) BHs. With the finite difference method, the stability of the f(R) black holes (BHs) is analysed and the threshold range of f(R) (Schwarzschild) BHs and f(R) (Maxwell) BHs is defined respectively. The results show that due to the presence of the correction factor R0, the damping rate of Dirac field decreases. Meanwhile, the influence of angular quantum number values vertical bar k vertical bar on the f(R) BHs is investigated. The results indicate that the QNMs oscillation becomes tenser and damping speed slowly decreases with vertical bar k vertical bar increasing. Furthermore, under the Dirac perturbation, the stability of f(R) solutions can be reflected in the manner of Dirac QNMs. The relationships between the QNMs and the parameters (vertical bar k vertical bar, charge Q and mass m) are discussed in massless, and massive cases, by contrast to the classical BHs. (AU) | |
| FAPESP's process: | 12/08934-0 - Horava's gravity at Lifshitz fixed points and its applications to cosmology and astrophysics |
| Grantee: | Kai Lin |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |