Reconnection of superfluid vortex bundles

Details Reconnection of superfluid vortex bundles Reconnection of superfluid vortex bundles

2008-09-27

arxiv.org/abs/0809.4746v1

Physics

Condensed Matter

Statistical Mechanics

10 pages, 7 figures

Scientific paper

10.1103/PhysRevLett.101.215302

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.

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