Quantum Hair on Colliding Black Holes

TL;DR

This paper proposes that quantum hair on black hole horizons influences gravitational wave emissions during black hole collisions, linking quantum information, horizon dynamics, and gravitational radiation through a holographic framework.

Contribution

It introduces a novel perspective on black hole coalescence, suggesting quantum hair affects graviton production and relates to RT entropy via a holographic approach.

Findings

Quantum hair participates in graviton generation during BH collisions.

Excited quantum states of BH horizons relax by producing gravitons.

Quantum information from BH coalescence may be observable in GW data.

Abstract

Abstract Black hole collision produce gravitational radiation which is generally thought in a quantum limit to be gravitons. The stretched horizon of a black hole contains quantum information, or a form of quantum hair, which in a coalescence of black holes participates in the generation of gravitons. This may be facilitated with a Bohr-like approach to black hole (BH) quantum physics with quasi-normal mode (QNM) approach to BH quantum mechanics. Quantum gravity and quantum hair on event horizons is excited to higher energy in BH coalescence. The near horizon condition for two BHs right before collision is a deformed AdS spacetime. These excited states of BH quantum hair then relax with the production of gravitons. This is then argued to define RT entropy given by quantum hair on the horizons. These qubits of information from a BH coalescence should then appear in gravitational wave (GW) data. This is a form of the standard AdS/CFT correspondence and the Ryu-Takayanagi (RT) formula.