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Stability of quantized vortices in two-component condensates

Lookup NU author(s): Professor Carlo Barenghi

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Multiply quantized vortices (MQVs) within single-component Bose-Einstein condensates are unstable and decay rapidly. We show that MQVs can be stabilized by adding a small number of atoms of a second species to the vortex cores, and that these atoms remain in the vortex core as the system evolves. A consequence of the stabilization is that nearby corotating vortices can orbit in the opposite sense to their individual rotations when enough of the second species is present. This has implications concerning the imaging of vortices, as well as quantum turbulence and vortex nucleation in two-component condensates, such as those involving mixtures of Rb87 and Cs133.

Publication metadata

Author(s): Patrick S, Gupta A, Gregory R, Barenghi CF

Publication type: Article

Publication status: Published

Journal: Physical Review Research

Year: 2023

Volume: 5

Issue: 3

Online publication date: 20/09/2023

Acceptance date: 09/08/2023

Date deposited: 06/11/2023

ISSN (electronic): 2643-1564

Publisher: American Physical Society

URL: https://doi.org/10.1103/PhysRevResearch.5.033201

DOI: 10.1103/PhysRevResearch.5.033201

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