Control of light-atom solitons and atomic transport by optical vortex beams propagating through a Bose-Einstein condensate

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Abstract

We model propagation of far-red-detuned optical vortex beams through a Bose-Einstein condensate using nonlinear Schrödinger and Gross-Pitaevskii equations. We show the formation of coupled light-atomic solitons that rotate azimuthally before moving off tangentially, carrying angular momentum. The number, and velocity, of solitons, depends on the orbital angular momentum of the optical field. Using a Bessel-Gauss beam increases radial confinement so that solitons can rotate with fixed azimuthal velocity. Our model provides a highly controllable method of channeling a BEC and atomic transport.
Original languageEnglish
Article number073902
Number of pages5
JournalPhysical Review Letters
Volume129
Issue number7
DOIs
Publication statusPublished - 12 Aug 2022

Keywords

  • angular momentum of light
  • atom optics
  • optical solitons
  • optomechanics
  • Bose-Einstein condensates

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