The close analogy of a purely magnetic excitation scheme, used in the experiments on Bose-Einstein condensate by Hodby et al., and the rotating bucket experiments with liquid helium 4 has suggested us to apply a phenomenological equation for the vortex line density, previously proposed for rotating superfluid helium 4, to describe the vortex density in a rotating Bose-Einstein condensate as a function of the angular speed. In both systems, the phenomenological equation provides a reasonable description of the observed data.
JOU D, SCIACCA M, MONGIOVI' MS (2008). Phenomenological description of the vortex density in rotating BEC superfluids. In BRUGARINO TOMMASO, MONGIOVI' MARIA STELLA (a cura di), Bollettino di Matematica Pura e Applicata (pp. 85-94). ROMA : Aracne editrice.
Phenomenological description of the vortex density in rotating BEC superfluids
SCIACCA, Michele;MONGIOVI', Maria Stella
2008-01-01
Abstract
The close analogy of a purely magnetic excitation scheme, used in the experiments on Bose-Einstein condensate by Hodby et al., and the rotating bucket experiments with liquid helium 4 has suggested us to apply a phenomenological equation for the vortex line density, previously proposed for rotating superfluid helium 4, to describe the vortex density in a rotating Bose-Einstein condensate as a function of the angular speed. In both systems, the phenomenological equation provides a reasonable description of the observed data.
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