Vortices in dipolar Bose–Einstein condensates

Thomas Bland; Giacomo Lamporesi; Manfred J. Mark; Francesca Ferlaino

doi:10.5802/crphys.160

Vortices in dipolar Bose–Einstein condensates
[Tourbillons dans un condensat de Bose–Einstein dipolaire]

Thomas Bland ¹ ; Giacomo Lamporesi ² ; Manfred J. Mark ^1,³ ; Francesca Ferlaino ^1,³

¹ Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
² Pitaevskii BEC Center, CNR-INO and Dipartimento di Fisica, Università di Trento, I-38123, Trento, Italy
³ Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria

Comptes Rendus. Physique, Volume 24 (2023) no. S3, pp. 133-152.

Résumé
Abstract

Les vortex quantiques sont un marqueur fort de la superfluidité, et sont souvent recherchés comme première caractéristique observable dans les nouveaux systèmes superfluides. Suite aux récentes observations de vortex dans des condensats de Bose–Einstein constitués d’atomes en interaction intrinsèquement à longue portée [Nat. Phys. 18, 1453-1458 (2022)], nous étudions en détail les propriétés des vortex dans le régime dominé par les interactions dipolaires tridimensionnelles et dont la stabilité dépend crucialement des effets au-delà du champ moyen, et nous étudions l’influence de la géométrie du piège et de l’angle d’inclinaison du champ magnétique.

Quantized vortices are the hallmark of superfluidity, and are often sought out as the first observable feature in new superfluid systems. Following the recent experimental observation of vortices in Bose–Einstein condensates comprised of atoms with inherent long-range dipole-dipole interactions [Nat. Phys. 18, 1453-1458 (2022)], we thoroughly investigate vortex properties in the three-dimensional dominantly dipolar regime, where beyond-mean-field effects are crucial for stability, and investigate the interplay between trap geometry and magnetic field tilt angle.

Reçu le : 2023-03-23
Révisé le : 2023-05-24
Accepté le : 2023-06-23
Première publication : 2023-09-05
Publié le : 2024-05-31

DOI : 10.5802/crphys.160

Keywords: Ultracold atoms, quantum vortices, long-range interactions, supersolidity
Mot clés : Atomes ultrafroids, vortex quantiques, interactions à longue portée, supersolidité

Affiliations des auteurs :

Thomas Bland ¹ ; Giacomo Lamporesi ² ; Manfred J. Mark ^{1, 3} ; Francesca Ferlaino ^{1, 3}

¹ Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
² Pitaevskii BEC Center, CNR-INO and Dipartimento di Fisica, Università di Trento, I-38123, Trento, Italy
³ Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria

Licence :

CC-BY 4.0

Droits d'auteur : Les auteurs conservent leurs droits

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Thomas Bland; Giacomo Lamporesi; Manfred J. Mark; Francesca Ferlaino. Vortices in dipolar Bose–Einstein condensates. Comptes Rendus. Physique, Volume 24 (2023) no. S3, pp. 133-152. doi : 10.5802/crphys.160. https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.160/

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