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Coherent disintegration and stability of vortices in trapped Bose condensate

H. Pu·C. K. Law·J. H. Eberly·N. P. Bigelow
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Abstract

We consider the intrinsic stability of the vortex states of a pure Bose-Einstein condensate confined in a harmonic potential under the effects of coherent atom-atom interaction. We find that stable vortices can be supported, and that vortex stability can be controlled by changing the inter-particle interaction strength. At unstable regimes, a vortex will spontaneously disintegrate into states with different angular momenta even without external perturbations, with the lifetime determined by its imaginary excitation frequencies.

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H. Pu, C. K. Law, J. H. Eberly, N. P. Bigelow. 1998-08-10. Coherent disintegration and stability of vortices in trapped Bose condensate. https://doi.org/10.1103/physreva.59.1533

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