Signature of Non-uniform Area Quantization on Gravitational Waves

TL;DR

This paper explores how non-uniform quantization of black hole areas could influence gravitational wave signals, potentially allowing observational tests of quantum gravity effects and black hole entropy relations.

Contribution

It introduces a model of non-uniform area quantization and analyzes its impact on gravitational wave phasing, proposing a method to detect quantum gravitational signatures.

Findings

Non-uniform area quantization affects gravitational waveform phasing.

Potential to set bounds on quantum gravity parameters from gravitational wave data.

Provides a new test for the area-entropy proportionality in black holes.

Abstract

Quantum aspects of black holes may have observational imprints on their absorption and emission spectrum. In this work, we consider the possibility of non-uniform area quantization and its effects on the phasing of gravitational waveform from coalescing black hole inspirals. These observations may provide detectable effects distinct from that of a uniform area quantization and allow us to put bounds on various parameters of the underlying model. Our work can also be regarded as a novel test for the area-entropy proportionality of black hole solutions in general relativity.