Reconnection of superfluid vortex bundles

Abstract

Using the vortex filament model and the Gross Pitaevskii nonlinear Schroedinger equation, we show that bundles of quantised vortex lines in helium II are structurally robust and can reconnect with each other maintaining their identity. We discuss vortex stretching in superfluid turbulence and show that, during the bundle reconnection process, Kelvin waves of large amplitude are generated, in agreement with the finding that helicity is produced by nearly singular vortex interactions in classical Euler flows.

10 pages, 7 figures

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Cited by in corpus (19)

• Numerical Studies of Quantum Turbulence
• Theory of decay of superfluid turbulence in the low-temperature limit
• Spectrum of turbulent Kelvin-waves cascade in superfluid helium
• Thermally- and mechanically-driven quantum turbulence in helium II
• Breathers on Quantized Superfluid Vortices
• Velocity, energy and helicity of vortex knots and unknots
• Sustained turbulence in the three-dimensional Gross-Pitaevskii model
• Excitation of knotted vortex lines in matter waves
• Reconnections of quantized vortex rings in superfluid ${}^4$He at very low temperatures
• Helicity Conservation, and Twisted Seifert Surfaces for Superfluid Vortices
• Stochastic Lagrangian Dynamics of Vorticity. II. Channel-Flow Turbulence
• Bathtub vortex in superfluid ${}^4$He
• Helicity in Superfluids: existence and the classical limit
• Vortex length, vortex energy and fractal dimension of superfluid turbulence at very low temperature
• Precessing vortex motion and instability in a rotating column of superfluid 3He-B
• Hydrodynamic Instability and Turbulence in Quantum Fluids
• Scattering of Line-Ring Vortices in a Superfluid
• Simulating Quantum Turbulence with Matrix Product States
• Controlled generation of 3D vortices in driven atomic Josephson junctions