Sound Trap in a Superfluid ⚡ экспресс
Original: "Extending the model of rotating acoustic geometries to include non-vanishing solid-body rotation: quasibound spectra"
Sound waves fall into a vortex's inescapable trap, just like light into a black hole.
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Sound can be trapped just like light in a black hole. In superfluid helium, vortices create a zone where sound can’t escape. By adding rotation, scientists calculated the 'notes' of this trap — a step toward unraveling quantum mysteries.
🎯 When cooled nearly to absolute zero, superfluid helium can circulate forever in a closed loop without slowing down — that’s the ideal frictionless liquid in action.
🎬 In *Interstellar*, the Gargantua black hole twists light; a lab vortex twists sound.