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Nature 435, 1035-1036 (23 June 2005) | doi:10.1038/4351035a; Published online 22 June 2005

Low-temperature physics:  A quantum revolution

Rudolf Grimm1

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Tiny quantum tornadoes observed in ultracold gases of fermionic atoms provide definitive evidence of superfluidity, and open up new vistas in the modelling of quantum many-body systems.

Almost exactly ten years after the first observation of a Bose–Einstein condensate (BEC) in ultracold atomic gases consisting of so-called bosons1, 2, a similar revolution is now unfolding. Evidence has piled up that atoms of the class of particles known as fermions can also be cooled down to a superfluid state.

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