Large ensembles of atoms can be buffer-gas loaded into a magnetic trap and further evaporatively cooled all the way down to quantum degeneracy. The approach has now been shown to provide an alternative — and potentially general — route to Bose–Einstein condensation.
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Friedrich, B. BECs from the fridge. Nature Phys 5, 712–714 (2009). https://doi.org/10.1038/nphys1417
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DOI: https://doi.org/10.1038/nphys1417