Excitation of knotted vortex lines in matter waves

Maucher, F.; Gardiner, S.A.; Hughes, I.G.

Abstract

We study the creation of knotted ultracold matter waves in Bose–Einstein condensates via coherent two-photon Raman transitions with a Λ level configuration. The Raman transition allows an indirect transfer of atoms from the internal state $| a\rangle $ to the target state $| b\rangle $ via an excited state $| e\rangle $, that would be otherwise dipole-forbidden. This setup enables us to imprint three-dimensional knotted vortex lines embedded in the probe field to the density in the target state. We elaborate on experimental feasibility as well as on subsequent dynamics of the matter wave.

Citation

Maucher, F., Gardiner, S., & Hughes, I. (2016). Excitation of knotted vortex lines in matter waves. New Journal of Physics, 18(6), Article 063016. https://doi.org/10.1088/1367-2630/18/6/063016

• Journal Article Type: Article
• Acceptance Date: May 11, 2016
• Online Publication Date: Jun 13, 2016
• Publication Date: Jun 13, 2016
• Deposit Date: Dec 30, 2015
• Publicly Available Date: Jun 16, 2016
• Journal: New Journal of Physics
• Electronic ISSN: 1367-2630
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 18
• Issue: 6
• Article Number: 063016
• DOI: https://doi.org/10.1088/1367-2630/18/6/063016
• Public URL: https://durham-repository.worktribe.com/output/1424237