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

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Title: Structure of a Single-Quantum Vortex in 3He-A.
Authors: Rantanen, Riku1 (AUTHOR) riku.s.rantanen@aalto.fi, Thuneberg, Erkki1,2 (AUTHOR), Eltsov, Vladimir1 (AUTHOR)
Source: Journal of Low Temperature Physics. Jul2025, Vol. 220 Issue 1, p88-103. 16p.
Subjects: Numerical calculations, Superfluidity, Skyrmions, Computer simulation
Abstract: We have performed numerical calculations of the structure of the single-quantum vortex in superfluid 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. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Low Temperature Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Structure of a Single-Quantum Vortex in <superscript>3</superscript>He-A.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Low+Temperature+Physics%22">Journal of Low Temperature Physics</searchLink>. Jul2025, Vol. 220 Issue 1, p88-103. 16p.
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  Data: We have performed numerical calculations of the structure of the single-quantum vortex in superfluid 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Low Temperature Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10909-025-03279-2
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        Text: English
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      – SubjectFull: Skyrmions
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      – TitleFull: Structure of a Single-Quantum Vortex in 3He-A.
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              Text: Jul2025
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