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Rosenbusch P, Petrov DS, Sinha S, et al. Critical rotation of a harmonically trapped Bose gas. Phys Rev Lett. 2002;88(25):250403doi: 10.1103/PhysRevLett.88.250403.
Rosenbusch, P., Petrov, D. S., Sinha, S., Chevy, F., Bretin, V., Castin, Y., Shlyapnikov, G., & Dalibard, J. (2002). Critical rotation of a harmonically trapped Bose gas. Physical review letters, 88(25), 250403. https://doi.org/10.1103/PhysRevLett.88.250403
Rosenbusch, P, et al. "Critical rotation of a harmonically trapped Bose gas." Physical review letters vol. 88,25 (2002): 250403. doi: https://doi.org/10.1103/PhysRevLett.88.250403
Rosenbusch P, Petrov DS, Sinha S, Chevy F, Bretin V, Castin Y, Shlyapnikov G, Dalibard J. Critical rotation of a harmonically trapped Bose gas. Phys Rev Lett. 2002 Jun 24;88(25):250403. doi: 10.1103/PhysRevLett.88.250403. Epub 2002 Jun 07. PMID: 12097078.
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Phys Rev Lett. 2002 Jun 24;88(25):250403. doi: 10.1103/PhysRevLett.88.250403. Epub 2002 Jun 07.

Critical rotation of a harmonically trapped Bose gas.

Physical review letters

P Rosenbusch, D S Petrov, S Sinha, F Chevy, V Bretin, Y Castin, G Shlyapnikov, J Dalibard

Affiliations

  1. Laboratoire Kastler Brossel, 24 rue Lhomond, 75005 Paris, France.

PMID: 12097078 DOI: 10.1103/PhysRevLett.88.250403

Abstract

We study experimentally and theoretically a cold trapped Bose gas under critical rotation, i.e., with a rotation frequency close to the frequency of the radial confinement. We identify two regimes: the regime of explosion where the cloud expands to infinity in one direction, and the regime where the condensate spirals out of the trap as a rigid body. The former is realized for a dilute cloud, and the latter for a condensate with the interparticle interaction exceeding a critical value. This constitutes a novel system in which repulsive interactions help in maintaining particles together.

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