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arXiv · 2112.10109

Signature of Non-uniform Area Quantization on Black Hole Echoes

Kabir Chakravarti·Rajes Ghosh·Sudipta Sarkar
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Abstract

A classical black hole is characterized by a horizon that absorbs radiation of all frequencies incident on it. Perturbation of these black holes is well-understood via exponentially damped sinusoids known as quasi-normal modes. Any departure from such classical behavior near the horizon may induce significant modifications in the late time evolution of the perturbation leading to so-called gravitational wave echoes. This work considers the effect of black hole area-quantization on the formation of gravitational wave echoes. We investigate how the resulting echo waveform may depend on various model parameters. Our study opens up a new window to distinguish different models of area quantization using future gravitational wave observations and provides a novel probe to study the near horizon physics.

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Kabir Chakravarti, Rajes Ghosh, Sudipta Sarkar. 2021-12-19. Signature of Non-uniform Area Quantization on Black Hole Echoes. https://doi.org/10.1103/physrevd.105.044046

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