Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/192746
Title: | Rotating 3He droplets |
Author: | Pi Pericay, Martí Ancilotto, Francesco Barranco Gómez, Manuel |
Keywords: | Teoria del funcional de densitat Heli Dinàmica de fluids Density functionals Helium Fluid dynamics |
Issue Date: | 13-May-2020 |
Publisher: | American Institute of Physics (AIP) |
Abstract: | Motivated by recent experiments, we study normal-phase rotating 3He droplets within density functional theory in a semi-classical approach. The sequence of rotating droplet shapes as a function of angular momentum is found to agree with that of rotating classical droplets, evolving from axisymmetric oblate to triaxial prolate to two-lobed shapes as the angular momentum of the droplet increases. Our results, which are obtained for droplets of nanoscopic size, are rescaled to the mesoscopic size characterizing ongoing experimental measurements, allowing for a direct comparison of shapes. The stability curve in the angular velocity-angular momentum plane shows small deviations from the classical rotating drop model predictions, whose magnitude increases with angular momentum. We attribute these deviations to effects not included in the simplified classical model description of a rotating fluid held together by surface tension, i.e., to surface diffuseness, curvature, and finite compressibility, and to quantum effects associated with deformation of the 3He Fermi surface. The influence of all these effects is expected to diminish as the droplet size increases, making the classical rotating droplet model a quite accurate representation of 3He rotation. |
Note: | Reproducció del document publicat a: https://doi.org/10.1063/5.0007959 |
It is part of: | Journal of Chemical Physics, 2020, vol. 152, p. 1-8 |
URI: | http://hdl.handle.net/2445/192746 |
Related resource: | https://doi.org/10.1063/5.0007959 |
ISSN: | 0021-9606 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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701399.pdf | 1.92 MB | Adobe PDF | View/Open |
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