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cond-mat.soft2000★ 3 cited
Dissipationless flow and superfluidity in gaseous Bose-Einstein condensates
C. Raman, R. Onofrio, J. M. Vogels +2
We study dissipation in a dilute Bose gas induced by the motion of a macroscopic object. A blue-detuned laser beam focused on the center of a trapped gas of sodium atoms was scanne…
cond-mat.soft2000★ 364 cited
Observation of Superfluid Flow in a Bose-Einstein Condensed Gas
R. Onofrio, C. Raman, J. M. Vogels +3
We have studied the hydrodynamic flow in a Bose-Einstein condensate stirred by a macroscopic object, a blue detuned laser beam, using nondestructive {\em in situ} phase contrast im…