Superfluid rings as quantum pendulums

A nondispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatomic interactions, loaded into a tilted ring potential. The classical and quantum domains are switched on by tuned interactions, and the classical dynamical stabilizat...

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Bibliographic Details
Authors: Muñoz Mateo, Antonio, Astrakharchik, Grigory E., Juliá-Díaz, Bruno
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/222294
Online Access:https://hdl.handle.net/2445/222294
Access Level:Open access
Keyword:Condensació de Bose-Einstein
Superfluïdesa
Bosons
Bose-Einstein condensation
Superfluidity
Description
Summary:A nondispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatomic interactions, loaded into a tilted ring potential. The classical and quantum domains are switched on by tuned interactions, and the classical dynamical stabilization of unstable states, i.e., à la Kapitza, is shown to be driven by quantum phase imprinting. One potential application of this system as a gravimeter is discussed.