Collision dynamics of two-dimensional non-Abelian vortices

Thomas Mawson, Timothy C. Petersen, and Tapio Simula
Phys. Rev. A 96, 033623 – Published 18 September 2017
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Abstract

We study computationally the collision dynamics of vortices in a two-dimensional spin-2 Bose-Einstein condensate. In contrast to Abelian vortex pairs, which annihilate or pass through each other, we observe non-Abelian vortex pairs to undergo rungihilation—an event that converts the colliding vortices into a rung vortex. The resulting rung defect subsequently decays to another pair of non-Abelian vortices of different type, accompanied by a magnetization reversal.

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  • Received 25 May 2017

DOI:https://doi.org/10.1103/PhysRevA.96.033623

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Thomas Mawson*, Timothy C. Petersen, and Tapio Simula

  • School of Physics and Astronomy, Monash University, Victoria 3800, Australia

  • *thomas.mawson@monash.edu

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Issue

Vol. 96, Iss. 3 — September 2017

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