Collision dynamics of two-dimensional non-Abelian vortices

2017/05/31 by T. Mawson, T. C. Petersen, Timothy C. Petersen +2
Mathematics · Physics and Astronomy · #Abelian group #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Collision #Combinatorics #Computer science #Condensed matter physics #Dynamics (music) #Mathematics #Mechanics #Physics #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #Vortex #cond-mat.quant-gas

paper · pdf · doi:10.1103/physreva.96.033623

published as Phys. Rev. A 96 033623 (2017) · 6 pages, 4 figures; edited as per referee comments

arxiv created 2017/08/03 · openalex publication_date 2017/09/18 · arxiv updated 2018/02/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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.

Citations

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