Work

Structure of a Single-Quantum Vortex in 3He-A

Year: 2025

Type: article

Abstract: We have performed numerical calculations of the structure of the single-quantum vortex in superfluid $$^3$$ 3 He-A. The GPU-accelerated large-scale numerical simulation is performed in the Ginzburg-Landau model and resolves length scales of both coherence-length-sized hard core and dipolar-length-sized soft core of the vortex. The calculations support previously suggested qualitative structure of the vortex, recently named as eccentric fractional skyrmion, and provide numerical values for the vortex energy, sizes and locations of the hard and soft cores and highly-asymmetric flow profile of the vortex.

Source: Journal of Low Temperature Physics

DOI: 10.1007/s10909-025-03279-2

Authors: Riku Rantanen, Erkki Thuneberg, Vladimir Eltsov

Institution: Aalto University

Language: English

Topic: Quantum, superfluid, helium dynamics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,390

Funders: Academy of Finland, Aalto-Yliopisto