Superradiant Amplification of a Scalar Wave Coupled Kinematically to Curvature Scattered off a Reissner-Nordström Black Hole

2017/02/15 by Theodoros Kolyvaris, Eleftherios Papantonopoulos, Kolyvaris, Theodoros +1 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #gr-qc #hep-th

paper · pdf · doi:10.48550/arxiv.1702.04618

12 pages, 8 figures, references added

arxiv created 2017/03/01 · arxiv updated 2017/03/02

Abstract

We study the dynamics of a massive charged scalar wave which except its canonical coupling to gravity it is also coupled kinematically to Einstein tensor. We find that as the strength of the new coupling is increased the scattered wave off the horizon of a Reissner-Nordström black hole is superradiantly amplified resulting to the instability of the Reissner-Nordström spacetime.

Cited by

• Superradiant Instabilities in a Class of Scalar-Tensor Horndeski Theory

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