Observation of Superfluid Flow in a Bose-Einstein Condensed Gas
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- 11 September 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (11) , 2228-2231
- https://doi.org/10.1103/physrevlett.85.2228
Abstract
We have studied the hydrodynamic flow in a Bose-Einstein condensate stirred by a macroscopic object, a blue-detuned laser beam, using nondestructive in situ phase contrast imaging. A critical velocity for the onset of a pressure gradient has been observed, and shown to be density dependent. The technique has been compared to a calorimetric method used previously to measure the heating induced by the motion of the laser beam.Keywords
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This publication has 17 references indexed in Scilit:
- Observation of the Scissors Mode and Evidence for Superfluidity of a Trapped Bose-Einstein Condensed GasPhysical Review Letters, 2000
- Vortex Formation in a Stirred Bose-Einstein CondensatePhysical Review Letters, 2000
- Vortices in a Bose-Einstein CondensatePhysical Review Letters, 1999
- Coherent Dynamics of Vortex Formation in Trapped Bose-Einstein CondensatesPhysical Review Letters, 1999
- Pressure Drag in Linear and Nonlinear Quantum FluidsPhysical Review Letters, 1999
- Theory of Bose-Einstein condensation in trapped gasesReviews of Modern Physics, 1999
- Nonlinear Schrödinger flow past an obstacle in one dimensionPhysical Review E, 1997
- Transition to dissipation in a model of superflowPhysical Review Letters, 1992
- An Introduction to Liquid HeliumPhysics Today, 1989
- The λ-Phenomenon of Liquid Helium and the Bose-Einstein DegeneracyNature, 1938