Towards analogue black hole merger

TL;DR

This paper demonstrates how polariton condensates with quantum vortices can serve as a self-consistent analogue model for black hole mergers, capturing phenomena like gravitational wave emission and inspiral dynamics.

Contribution

It introduces a novel framework for simulating black hole mergers using polariton condensates with quantum vortices, including dynamic metrics and gravitational wave analogues.

Findings

Single vortex creates a convergent flow modeled by an analogue Kerr black hole

Pair of vortices exhibit an analogue of Kepler's third law

Simulation of black hole inspiral phase with gravitational wave emission

Abstract

We study the effects of the wavevector-dependent losses on polariton condensates. We demonstrate that because of these losses, a single vortex becomes a center of a convergent flow, which allows describing it by an analogue Kerr black hole metric with a dynamically evolving origin. For a pair of vortices, we find an analogue of the 3rd Kepler's law and estimate the emission rate of the gravitational waves. We simulate an analogue of the inspiral phase of a black hole merger. Our work therefore suggests that polariton condensates with quantum vortices represent a setting with a fully self-consistent dynamical metric for broad analogue studies.