Work

Control of Light-Atom Solitons and Atomic Transport by Optical Vortex Beams Propagating through a Bose-Einstein Condensate

Year: 2022

Type: article

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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.129.073902

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

Institution: University of Strathclyde

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Horizon 2020 Framework Programme, Engineering and Physical Sciences Research Council, H2020 Marie Skłodowska-Curie Actions

Awards: Collective effects and optomechanics in ultra-cold matter, Collective effects and optomechanics in ultra-cold matter, G434337789, DTP 2018-19 University of Strathclyde, G888710991