Deterministic nucleation and dynamics of infilled multiply-charged vortices in an immiscible 87Rb-41K mixture

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Doran, R. and Wilson, K.E. (2026) Deterministic nucleation and dynamics of infilled multiply-charged vortices in an immiscible 87Rb-41K mixture. Other. arXiv. (https://doi.org/10.48550/arXiv.2604.24511)

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Abstract

We propose a method for controllably generating multiply-charged vortices in immiscible Bose-Einstein condensates. We achieve this by applying a laser stirring technique to a 87Rb-41K mixture, where the vortices generated are infilled by the secondary component. We numerically demonstrate that the charge of the vortex can be tuned reproducibly by varying the stirring parameters, allowing the deterministic generation of stable infilled vortices with high topological charge. We then consider the dynamics of these multiply-charged vortices in a circular trap; in contrast to single-component condensates, we observe long-lived precession of the multiply-charged vortices with a charge dependent frequency and collective breathing modes of the infilling component. For sufficiently large winding numbers, we observe distinct dynamical instabilities leading to vortex dislocation.

ORCID iDs

Doran, R. and Wilson, K.E. ORCID logoORCID: https://orcid.org/0000-0001-5683-8441;
  • Item type:Monograph(Other)
    ID code:96164
    Dates:
    Date
    Event
    27 April 2026
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:30 Apr 2026 15:08
    Last modified:02 Jun 2026 02:07
    URI:https://strathprints.strath.ac.uk/id/eprint/96164
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