Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets

Within density functional theory, we have studied the interplay between vortex arrays and capillary waves in spinning prolate 4He droplets made of several thousand helium atoms. Surface capillary waves are ubiquitous in prolate superfluid 4He droplets, and depending on the size and angular momentum...

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Autores: Pi Pericay, Martí, Escartín, José María, Ancilotto, Francesco, Barranco Gómez, Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/183351
Acceso en línea:https://hdl.handle.net/2445/183351
Access Level:acceso abierto
Palabra clave:Vòrtexs
Superfluïdesa
Líquids quàntics
Vortex-motion
Superfluidity
Quantum liquids
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spelling Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodropletsPi Pericay, MartíEscartín, José MaríaAncilotto, FrancescoBarranco Gómez, ManuelVòrtexsSuperfluïdesaLíquids quànticsVortex-motionSuperfluidityQuantum liquidsWithin density functional theory, we have studied the interplay between vortex arrays and capillary waves in spinning prolate 4He droplets made of several thousand helium atoms. Surface capillary waves are ubiquitous in prolate superfluid 4He droplets, and depending on the size and angular momentum of the droplet, they may coexist with vortex arrays. We have found that the equilibrium configuration of small prolate droplets is vortex free, evolving towards vortex hosting as the droplet size increases. This result is in agreement with a recent experiment [O'Connell et al., Phys. Rev. Lett. 124, 215301 (2020)] that disclosed that vortex arrays and capillary waves coexist in the equilibrium configuration of very large drops. In contrast to viscous droplets executing rigid-body rotation, the stability phase diagram of spinning 4He droplets cannot be universally described in terms of dimensionless angular momentum and angular velocity variables: Instead, the rotational properties of superfluid helium droplets display a clear dependence on the droplet size and the number of vortices they host.American Physical Society2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/183351Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevB.104.094509Physical Review B, 2021, vol. 104, p. 094509-1-094509-11https://doi.org/10.1103/PhysRevB.104.094509info:eu-repo/grantAgreement/EC/H2020/824143(c) American Physical Society, 2021info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1833512026-05-27T06:46:51Z
dc.title.none.fl_str_mv Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
title Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
spellingShingle Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
Pi Pericay, Martí
Vòrtexs
Superfluïdesa
Líquids quàntics
Vortex-motion
Superfluidity
Quantum liquids
title_short Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
title_full Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
title_fullStr Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
title_full_unstemmed Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
title_sort Coexistence of vortex arrays and surface capillary waves in spinning prolate superfluid 4He nanodroplets
dc.creator.none.fl_str_mv Pi Pericay, Martí
Escartín, José María
Ancilotto, Francesco
Barranco Gómez, Manuel
author Pi Pericay, Martí
author_facet Pi Pericay, Martí
Escartín, José María
Ancilotto, Francesco
Barranco Gómez, Manuel
author_role author
author2 Escartín, José María
Ancilotto, Francesco
Barranco Gómez, Manuel
author2_role author
author
author
dc.subject.none.fl_str_mv Vòrtexs
Superfluïdesa
Líquids quàntics
Vortex-motion
Superfluidity
Quantum liquids
topic Vòrtexs
Superfluïdesa
Líquids quàntics
Vortex-motion
Superfluidity
Quantum liquids
description Within density functional theory, we have studied the interplay between vortex arrays and capillary waves in spinning prolate 4He droplets made of several thousand helium atoms. Surface capillary waves are ubiquitous in prolate superfluid 4He droplets, and depending on the size and angular momentum of the droplet, they may coexist with vortex arrays. We have found that the equilibrium configuration of small prolate droplets is vortex free, evolving towards vortex hosting as the droplet size increases. This result is in agreement with a recent experiment [O'Connell et al., Phys. Rev. Lett. 124, 215301 (2020)] that disclosed that vortex arrays and capillary waves coexist in the equilibrium configuration of very large drops. In contrast to viscous droplets executing rigid-body rotation, the stability phase diagram of spinning 4He droplets cannot be universally described in terms of dimensionless angular momentum and angular velocity variables: Instead, the rotational properties of superfluid helium droplets display a clear dependence on the droplet size and the number of vortices they host.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/183351
url https://hdl.handle.net/2445/183351
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1103/PhysRevB.104.094509
Physical Review B, 2021, vol. 104, p. 094509-1-094509-11
https://doi.org/10.1103/PhysRevB.104.094509
info:eu-repo/grantAgreement/EC/H2020/824143
dc.rights.none.fl_str_mv (c) American Physical Society, 2021
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2021
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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