Gravitational Waves and Black Hole perturbations in Acoustic Analogues
General Relativity and Quantum Cosmology
2025-03-04 v2 Quantum Gases
High Energy Physics - Phenomenology
Abstract
Phonons in Bose-Einstein condensates propagate as massless scalar particles on top of an emergent acoustic metric. This hydrodynamics/gravity analogy can be exploited to realize acoustic black holes, featuring an event horizon that traps phonons. We show that by an appropriate external potential, gravitational wave-like perturbations of the acoustic metric can be produced. Such perturbations can be used to excite an acoustic black hole, which should then relax by phonon emission.
Cite
@article{arxiv.2410.00264,
title = {Gravitational Waves and Black Hole perturbations in Acoustic Analogues},
author = {Chiara Coviello and Maria Luisa Chiofalo and Dario Grasso and Stefano Liberati and Massimo Mannarelli and Silvia Trabucco},
journal= {arXiv preprint arXiv:2410.00264},
year = {2025}
}