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Dissipation and Vortex Creation in Bose-Einstein Condensed Gases

B. Jackson·J. F. McCann·C. S. Adams
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Abstract

We solve the Gross-Pitaevskii equation to study energy transfer from an oscillating `object' to a trapped Bose-Einstein condensate. Two regimes are found: for object velocities below a critical value, energy is transferred by excitation of phonons at the motion extrema; while above the critical velocity, energy transfer is via vortex formation. The second regime corresponds to significantly enhanced heating, in agreement with a recent experiment.

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BibTeXRIS

B. Jackson, J. F. McCann, C. S. Adams. 2000-02-14. Dissipation and Vortex Creation in Bose-Einstein Condensed Gases. https://doi.org/10.1103/physreva.61.051603

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