Vortex Collisions: Crossing or Recombination?

Details Vortex Collisions: Crossing or Recombination? Vortex Collisions: Crossing or Recombination?

2000-12-18

arxiv.org/abs/cond-mat/0012328v2

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.86.5132

We investigate the collision of two vortex lines moving with viscous dynamics and driven towards each other by an applied current. Using London theory in the approach phase we observe a non-trivial vortex conformation producing anti-parallel segments; their attractive interaction triggers a violent collision. The collision region is analyzed using the time-dependent Ginzburg-Landau equation. While we find vortices will always recombine through exchange of segments, a crossing channel appears naturally through a double collision process.

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