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Rapidly Rotating Bose-Einstein Condensates in and near the Lowest Landau Level
V. Schweikhard, I. Coddington, P. Engels +2
We create rapidly rotating Bose-Einstein condensates in the lowest Landau level, by spinning up the condensates to rotation rates of the centrifugal limit for a harmonicall…
Observation of Tkachenko Oscillations in Rapidly Rotating Bose-Einstein Condensates
I. Coddington, P. Engels, V. Schweikhard +1
We directly image Tkachenko waves in a vortex lattice in a dilute-gas Bose-Einstein condensate. The low (sub-Hz) resonant frequencies are a consequence of the small but nonvanishin…
Observation of Long-lived Vortex Aggregates in Rapidly Rotating Bose-Einstein Condensates
P. Engels, I. Coddington, P. C. Haljan +2
We study the formation of large vortex aggregates in a rapidly rotating dilute-gas Bose-Einstein condensate. When we remove atoms from the rotating condensate with a tightly focuse…