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

• URL: http://arxiv.org/abs/2307.10977v1
• Date: Thu, 20 Jul 2023 16:05:23 GMT
• Title: Chiral currents in Bose-Einstein condensates subject to current-density interactions
• Authors: Maria Arazo, Montserrat Guilleumas, Ricardo Mayol, Vicente Delgado and Antonio Mu\~noz Mateo
• Abstract summary: Persistent currents in quasi-one-dimensional Bose-Einstein condensates become chiral in the presence of current-density interactions. They are analytically found to generalize previously known solutions to the mean-field equations of motion. Recent experiments in the field make these states within experimental reach.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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