Corpus ID: 237605463

Ringing Black Hole is Superradiant: Ultra-light Scalar Field

@inproceedings{Karmakar2021RingingBH,
  title={Ringing Black Hole is Superradiant: Ultra-light Scalar Field},
  author={Rajesh Karmakar and Debaprasad Maity},
  year={2021}
}
Superradiance has been studied quite extensively in the context of static (charged) and rotating black hole spacetime. In this paper, we report for the first time that for a minimally coupled scalar field, the absorption cross-section of a Schwarzschild black hole in its ring down phase can be superradiant. Our present result opens up an intriguing possibility of observing the black hole merging phenomena through other fundamental fields. 

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References

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