Chiral currents in Bose-Einstein condensates subject to current-density interactions

Persistent currents in quasi-one-dimensional Bose-Einstein condensates become chiral in the presence of current-density interactions. This phenomenon is explored in ultracold atoms loaded in a rotating ring geometry, where diverse current-carrying stationary states are analytically found to generali...

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Published inarXiv.org
Main Authors Arazo, Maria, Guilleumas, Montserrat, Mayol, Ricardo, Delgado, Vicente, Antonio Muñoz Mateo
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 20.07.2023
Subjects
Bose-Einstein condensates
Current density
Dynamic stability
Equations of motion
Motion stability
Physics - Quantum Gases
Physics - Quantum Physics
Ultracold atoms
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Summary:Persistent currents in quasi-one-dimensional Bose-Einstein condensates become chiral in the presence of current-density interactions. This phenomenon is explored in ultracold atoms loaded in a rotating ring geometry, where diverse current-carrying stationary states are analytically found to generalize previously known solutions to the mean-field equations of motion. Their dynamical stability is tested by numerical simulations that show stable currents for states with both constant and modulated density profiles, while decaying currents appear only beyond a unidirectional velocity threshold. Recent experiments in the field make these states within experimental reach.
Bibliography:SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
content type line 50
ISSN:2331-8422
DOI:10.48550/arxiv.2307.10977