Table-top superfluid experiments offer a way of bringing the physics of astrophysical black holes into the lab. But the presence of two event horizons in these superfluid black holes complicates matters — and makes them more interesting.
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Modugno, G. The life of an analogue black hole. Nat. Phys. 17, 300–301 (2021). https://doi.org/10.1038/s41567-020-01160-5
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DOI: https://doi.org/10.1038/s41567-020-01160-5
