Re-shaping Bose-Einstein condensates with complex light for atomic persistent currents and trapping

Grant W. Henderson; Gordon R. M. Robb; Gian-Luca Oppo; Alison M. Yao

doi:10.1117/12.2655327

15 March 2023 Re-shaping Bose-Einstein condensates with complex light for atomic persistent currents and trapping

Grant W. Henderson, Gordon R. M. Robb, Gian-Luca Oppo, Alison M. Yao

Proceedings Volume 12436, Complex Light and Optical Forces XVII; 1243608 (2023) https://doi.org/10.1117/12.2655327
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We numerically model the propagation of far-detuned optical beams through a Bose-Einstein condensate (BEC) using coupled nonlinear Schr¨odinger and Gross-Pitaevskii equations. For red atom-field detuning, we show that light carrying orbital angular momentum (OAM) can lead to coupled light-atom solitons carrying angular momentum. We demonstrate the formation of azimuthally rotating wavepackets, toward an atomic persistent current without trapping requirements. For blue atom-field detuning, we show highly exotic BEC distributions, with the atoms trapped in dark regions of the optical field. Our results provide a novel means of atomic transport and of sculpting a BEC into unique transverse distributions.

Conference Presentation

Citation Download Citation

Grant W. Henderson, Gordon R. M. Robb, Gian-Luca Oppo, and Alison M. Yao "Re-shaping Bose-Einstein condensates with complex light for atomic persistent currents and trapping", Proc. SPIE 12436, Complex Light and Optical Forces XVII, 1243608 (15 March 2023); https://doi.org/10.1117/12.2655327

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