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arXiv · 2410.00264

Gravitational Waves and Black Hole perturbations in Acoustic Analogues

Chiara Coviello·Maria Luisa Chiofalo·Dario Grasso·Stefano Liberati·Massimo Mannarelli·Silvia Trabucco
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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.

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Chiara Coviello, Maria Luisa Chiofalo, Dario Grasso, Stefano Liberati, Massimo Mannarelli, Silvia Trabucco. 2024-09-30. Gravitational Waves and Black Hole perturbations in Acoustic Analogues. https://doi.org/10.1116/5.0241559

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