Black hole shadow and chaos bound violation in \(f(T)\) teleparallel gravity. (English) Zbl 1521.83078
Summary: We show that the so-called chaos bound, proposed by Maldacena, Shenker & Stanford, can be violated in \(f(T)\) teleparallel gravity. In particular, it is possible to select a new gravitational Lyapunov parameter, controlling chaotization of circular trajectories, in black hole photo-sphere, that can exceed the J. Maldacena et al. [J. High Energy Phys. 2016, No. 8, Paper No. 106, 17 p. (2016; Zbl 1390.81388)] thermal bound. This feature alters the standard quasi-normal modes and ringdown phase after black hole merging with intriguing implications for future gravitational wave detections and black hole shadow measurements. It is a general characteristic for several gravitational theories beyond standard General Relativity.
MSC:
| 83C57 | Black holes |
| 78A45 | Diffraction, scattering |
| 37D45 | Strange attractors, chaotic dynamics of systems with hyperbolic behavior |
| 53B15 | Other connections |
| 81V80 | Quantum optics |
| 83C35 | Gravitational waves |
| 60G35 | Signal detection and filtering (aspects of stochastic processes) |
Citations:
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