Dissipation and vortex creation in Bose-Einstein condensed gases

1999/12/31 by Brian Jackson, B. Jackson, J F McCann +3 · 5 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #cond-mat.stat-mech

paper · pdf · doi:10.1103/physreva.61.051603

4 pages, 5 figures, RevTeX. Typo corrected and Figure 5 modified to include more data. Accepted for publication in Phys. Rev. A

arxiv created 2000/02/14 · openalex publication_date 2000/04/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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.

Citations

• Vortices in a Bose-Einstein Condensate

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