I will discuss the most recent developments in JILA's experiment
on rapidly rotating Rb-87 BEC. We observe that the vortex lattice
"constant" is actually very slightly variable, which has qualitative
consequences for the overall density profile. I'll provide a summary of
JILA's finite-T spinor bose gas work. Finally, we'll see some pictures of
sub-, trans-, and hyper-sonic superfluid dynamics.
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