Self-similar expansion of the density profile in a turbulent Bose-Einstein condensate
arXiv:1103.2039 · doi:10.1007/s10909-011-0409-2
Abstract
In a recent study we demonstrated the emergence of turbulence in a trapped Bose-Einstein condensate of Rb-87 atoms. An intriguing observation in such a system is the behavior of the turbulent cloud during free expansion.The aspect ratio of the cloud size does not change in the way one would expect for an ordinary non-rotating (vortex-free) condensate. Here we show that the anomalous expansion can be understood, at least qualitatively, in terms of the presence of vorticity distributed throughout the cloud, effectively counteracting the usual reversal of the aspect ratio seen in free time-of-flight expansion of non-rotating condensates.
8 pages, 4 figures
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- Fermionic Quantum Turbulence: Pushing the Limits of High-Performance Computing
- From Coherent Modes to Turbulence and Granulation of Trapped Gases
- Scaling dynamics of the ultracold Bose gas
- Spontaneous symmetry breaking in rotating condensates of ultracold atoms
- Evolution of density variations in a trapped atomic superfluid driven into turbulence