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(1999)
Vortices in Nonlinear Fields
M. Reeves (2017)
Quantum Analogues of Two-Dimensional Classical Turbulence
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) 3 . E . A . Novikov , Zhurnal Eksperimental noi i Teoreticheskoi Fiziki 68 , 1868 ( 1975 ) 4
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(2019)
https ://githu b.com/Ashto nSBra dley/Vorte xDist ribut ions.jl
H Helmholtz (1867)
485Lond. Edinb. Dubl. Philos. Mag. J. Sci., 33
We study quantum vortex states consisting of a ring of vortices with alternating sign, in a homogeneous superfluid confined to a circular domain. We find an exact stationary solution of the point vortex model for the neutral vortex necklace. We investigate the stability of the necklace state within both the point-vortex model and the Gross–Pitaevskii equation describing a trapped atomic Bose–Einstein condensate at low temperature. The point-vortex stationary states are found to also be stationary states of the Gross–Pitaevskii equation provided the finite thickness of the outer fluid boundary is accounted for. Under significant perturbation, the Gross–Pitaevskii evolution and point-vortex model exhibit instability as expected for metastable states. The perturbed vortex necklace exhibits sensitivity to the perturbation, suggesting a route to seeding vortex chaos or quantum turbulence.
Journal of Low Temperature Physics – Springer Journals
Published: Jan 7, 2021
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