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Vortex dynamics in the nonlinear Schrodinger equation

Michael J. Quist
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Abstract

The dynamics of a two-dimensional vortex are analyzed within the framework of the nonlinear Schrodinger equation. Both a bare vortex and a vortex with an external mass trapped in a finite-sized core are considered. The bare vortex motion is found to be damped at all frequencies, while the finite core has a single resonant frequency. The force exerted by the fluid on the finite core can be expressed as a sum of dissipative and Magnus forces for sufficiently low frequencies, even when the core is small.

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Michael J. Quist. 2002-11-20. Vortex dynamics in the nonlinear Schrodinger equation. https://doi.org/10.1103/physrevb.60.4240

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