Collision dynamics of two-dimensional non-Abelian vortices

Thomas Mawson, Timothy C Petersen, Tapio Simula

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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.
Original languageEnglish
Article number033623
Number of pages5
JournalPhysical Review A
Issue number3
Publication statusPublished - 18 Sept 2017

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