Three-dimensional droplets of swirling superfluids

A new method for the creation of 3D solitary topological modes, corresponding to vortical droplets of a two-component dilute superfluid, is presented. We use the recently introduced system of nonlinearly coupled Gross-Pitaevskii equations, which include contact attraction between the components, and...

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Autores: Kartashov, Yaroslav V., Malomed, Boris A., Tarruell, Leticia, Torner Sabata, Lluís|||0000-0002-6491-4210
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/120489
Acceso en línea:https://hdl.handle.net/2117/120489
https://dx.doi.org/10.1103/PhysRevA.98.013612
Access Level:acceso abierto
Palabra clave:Solitons
Vortices in superfluids
Bose-Einstein condensates
Àrees temàtiques de la UPC::Física
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spelling Three-dimensional droplets of swirling superfluidsKartashov, Yaroslav V.Malomed, Boris A.Tarruell, LeticiaTorner Sabata, Lluís|||0000-0002-6491-4210SolitonsVortices in superfluidsBose-Einstein condensatesSolitonsSolitonsÀrees temàtiques de la UPC::FísicaA new method for the creation of 3D solitary topological modes, corresponding to vortical droplets of a two-component dilute superfluid, is presented. We use the recently introduced system of nonlinearly coupled Gross-Pitaevskii equations, which include contact attraction between the components, and quartic repulsion stemming from the Lee-Huang-Yang correction to the mean-field energy. Self-trapped vortex tori, carrying the topological charges m1=m2=1 or m1=m2=2 in their components, are constructed by means of numerical and approximate analytical methods. The analysis reveals stability regions for the vortex droplets (in broad and relatively narrow parameter regions for m1=m2=1 and m1=m2=2, respectively). The results provide the first example of stable 3D self-trapped states with the double vorticity, in any physical setting. The stable modes are shaped as flat-top ones, with the space between the inner hole, induced by the vorticity, and the outer boundary filled by a nearly constant density. On the other hand, all modes with hidden vorticity, i.e., topological charges of the two components m1=-m2=1, are unstable. The stability of the droplets with m1=m2=1 against splitting (which is the main scenario of possible instability) is explained by estimating analytically the energy of the split and un-split states. The predicted results may be implemented, exploiting dilute quantum droplets in mixtures of Bose-Einstein condensates.Peer ReviewedAmerican Physical Society (APS)20182018-07-1220182018-08-02journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/120489https://dx.doi.org/10.1103/PhysRevA.98.013612reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengEuropean Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 641122 Quantum simulations of insulators and conductorsopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1204892026-05-27T15:37:01Z
dc.title.none.fl_str_mv Three-dimensional droplets of swirling superfluids
title Three-dimensional droplets of swirling superfluids
spellingShingle Three-dimensional droplets of swirling superfluids
Kartashov, Yaroslav V.
Solitons
Vortices in superfluids
Bose-Einstein condensates
Solitons
Solitons
Àrees temàtiques de la UPC::Física
title_short Three-dimensional droplets of swirling superfluids
title_full Three-dimensional droplets of swirling superfluids
title_fullStr Three-dimensional droplets of swirling superfluids
title_full_unstemmed Three-dimensional droplets of swirling superfluids
title_sort Three-dimensional droplets of swirling superfluids
dc.creator.none.fl_str_mv Kartashov, Yaroslav V.
Malomed, Boris A.
Tarruell, Leticia
Torner Sabata, Lluís|||0000-0002-6491-4210
author Kartashov, Yaroslav V.
author_facet Kartashov, Yaroslav V.
Malomed, Boris A.
Tarruell, Leticia
Torner Sabata, Lluís|||0000-0002-6491-4210
author_role author
author2 Malomed, Boris A.
Tarruell, Leticia
Torner Sabata, Lluís|||0000-0002-6491-4210
author2_role author
author
author
dc.subject.none.fl_str_mv Solitons
Vortices in superfluids
Bose-Einstein condensates
Solitons
Solitons
Àrees temàtiques de la UPC::Física
topic Solitons
Vortices in superfluids
Bose-Einstein condensates
Solitons
Solitons
Àrees temàtiques de la UPC::Física
description A new method for the creation of 3D solitary topological modes, corresponding to vortical droplets of a two-component dilute superfluid, is presented. We use the recently introduced system of nonlinearly coupled Gross-Pitaevskii equations, which include contact attraction between the components, and quartic repulsion stemming from the Lee-Huang-Yang correction to the mean-field energy. Self-trapped vortex tori, carrying the topological charges m1=m2=1 or m1=m2=2 in their components, are constructed by means of numerical and approximate analytical methods. The analysis reveals stability regions for the vortex droplets (in broad and relatively narrow parameter regions for m1=m2=1 and m1=m2=2, respectively). The results provide the first example of stable 3D self-trapped states with the double vorticity, in any physical setting. The stable modes are shaped as flat-top ones, with the space between the inner hole, induced by the vorticity, and the outer boundary filled by a nearly constant density. On the other hand, all modes with hidden vorticity, i.e., topological charges of the two components m1=-m2=1, are unstable. The stability of the droplets with m1=m2=1 against splitting (which is the main scenario of possible instability) is explained by estimating analytically the energy of the split and un-split states. The predicted results may be implemented, exploiting dilute quantum droplets in mixtures of Bose-Einstein condensates.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-07-12
2018
2018-08-02
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/120489
https://dx.doi.org/10.1103/PhysRevA.98.013612
url https://hdl.handle.net/2117/120489
https://dx.doi.org/10.1103/PhysRevA.98.013612
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 641122 Quantum simulations of insulators and conductors
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society (APS)
publisher.none.fl_str_mv American Physical Society (APS)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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