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In a pioneering feat, physicists have created the first-ever simulation of a rotating black hole's phenomena using quantum vortices in superfluid helium. Their idea: figuring out how black holes interact with quantum particles.

This incredible experiment, conducted at the University of Nottingham, generated an ultra-cold helium vortex over 1 millimeter across - by far the largest quantum vortex ever produced. By studying sound waves propagating through this swirling superfluid maelstrom, the researchers were able to model quantum effects predicted to occur in the extreme environment surrounding a real rotating black hole's event horizon.

Paper: https://www.nature.com/articles/s4158...

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