التفاصيل البيبلوغرافية
| العنوان: |
Nanoscopic jets and filaments of superfluid He-4 at zero temperature: a DFT study |
| المؤلفون: |
Ancilotto, Francesco, Barranco Gómez, Manuel, Pi Pericay, Martí |
| المصدر: |
Articles publicats en revistes (Física Quàntica i Astrofísica) |
| بيانات النشر: |
American Institute of Physics (AIP) |
| سنة النشر: |
2023 |
| المجموعة: |
Dipòsit Digital de la Universitat de Barcelona |
| مصطلحات موضوعية: |
Teoria del funcional de densitat, Superfluïdesa, Viscositat, Density functionals, Superfluidity, Viscosity |
| الوصف: |
The instability of a cryogenic 4He jet exiting through a small nozzle into vacuum leads to the formation of 4He drops, which are considered ideal matrices for spectroscopic studies of embedded atoms and molecules. Here, we present a He-density functional theory (DFT) description of droplet formation resulting from jet breaking and contraction of superfluid 4He filaments. Whereas the fragmentation of long jets closely follows the predictions of linear theory for inviscid fluids, leading to droplet trains interspersed with smaller satellite droplets, the contraction of filaments with an aspect ratio larger than a threshold value leads to the nucleation of vortex rings, which hinder their breakup into droplets. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
13 p.; application/pdf |
| اللغة: |
English |
| تدمد: |
0021-9606 |
| Relation: |
Reproducció del document publicat a: https://doi.org/10.1063/5.0143399; Journal of Chemical Physics, 2023, vol. 158, p. 1-13; https://doi.org/10.1063/5.0143399; http://hdl.handle.net/2445/199406; 733446 |
| الاتاحة: |
http://hdl.handle.net/2445/199406 |
| Rights: |
(c) American Institute of Physics (AIP), 2023 ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edsbas.6021F4D5 |
| قاعدة البيانات: |
BASE |