Intercomponent vortex interaction and dynamics in a uniform Bose quantum liquid
Abstract
We investigate the interaction and dynamics of vortices belonging to different components of a binary uniform quantum liquid. Using the coupled extended Gross-Pitaevskii equations with logarithmic beyond-mean-field corrections, we derive the asymptotic interaction potential between well-separated vortices. The interaction potential retains the asymptotic form s−2 as a function of the intervortex distance s, but its coefficient depends on the background density through the quantum fluctuation. As a result, the interaction between vortices changes from attractive to repulsive at a critical density. Real-time simulations demonstrate a corresponding reversal of orbital motion of a vortex pair from clockwise to counterclockwise, consistent with their Magnus response.
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BibTeX
@misc{kiran2026intercomponent,
title = {{Intercomponent vortex interaction and dynamics in a uniform Bose quantum liquid}},
author = {Rabeea Kiran and Hiroki Saito and Hsiang-Hua Jen},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.36710},
eprint = {2610.36710},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.36710},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Intercomponent vortex interaction and dynamics in a uniform Bose quantum liquid
AU - Rabeea Kiran
AU - Hiroki Saito
AU - Hsiang-Hua Jen
PY - 2026
DA - 2026/10/27
PB - arXiv
DO - 10.48550/arxiv.2610.36710
UR - https://arxiv.org/abs/2610.36710
AB - We investigate the interaction and dynamics of vortices belonging to different components of a binary uniform quantum liquid. Using the coupled extended Gross-Pitaevskii equations with logarithmic beyond-mean-field corrections, we derive the asymptotic interaction potential between well-separated vortices. The interaction potential retains the asymptotic form s^−2 as a function of the intervortex distance s, but its coefficient depends on the background density through the quantum fluctuation. As a result, the interaction between vortices changes from attractive to repulsive at a critical density. Real-time simulations demonstrate a corresponding reversal of orbital motion of a vortex pair from clockwise to counterclockwise, consistent with their Magnus response.
ER -