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But when a Bose-Einstein condensate localizes, all the atoms get trapped in the *same place* - because they're all in exactly the same state! This was discovered at the University of Cambridge very recently: (4/n)https://twitter.com/UlrichCamPhy/status/1222833640801034240 …
Superfluid quasicrystals were first created in 2018. The holy grail, a "Bose glass", remains to be seen. It's a Bose-Einstein condensate that's also a glass.
New forms of matter with strange properties - I love 'em! 
(5/n, n = 5)https://phys.org/news/2018-04-solid-physicists-state.html …
There was a typo in my first tweet: I meant to say SUPERFLUID QUASICRYSTAL! It's impossible to have a periodic crystal with 8-fold symmetry... so they got a quasicrystal. Superfluid crystals are older: they're also called "supersolids".https://phys.org/news/2017-03-mattersupersolid-crystalline-superfluid.html …
Hi John. Just to clarify: I think this last work from 2018 is a proposal, not an experiment.
Thanks! So when did people actually first make a superfluid quasicrystal? It seems now the Cambridge group is already doing interesting things *with* them. But I'm not finding an earlier paper.
@UlrichCamPhy will know.
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