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  • Open Access

Imprinting knots in a spinor Bose-Einstein condensate via a Raman process without knotted optical fields

Zekai Chen*, Elisha Haber, and Nicholas P. Bigelow†

  • Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA and Center for Coherence and Quantum Optics, University of Rochester, Rochester, New York 14627, USA

  • *Current address: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, 6020 Innsbruck, Austria.
  • †nicholas.bigelow@rochester.edu
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Phys. Rev. Research 4, 043109 – Published 15 November, 2022

DOI: https://doi.org/10.1103/PhysRevResearch.4.043109

Abstract

We propose a dynamical imprinting scheme to create nodal lines of torus and lemniscate knots via a Raman process in a dilute spinor Bose-Einstein condensate. We calculate the desired parameters and the necessary spatial profiles of the Raman laser fields that couple a realistic multilevel atomic system, and demonstrate the imprinting results via a numerical calculation. Additionally, we show the capability of our method to adjust the size and the aspect ratio of the knotted nodal lines by tuning the parameters of Raman lasers that propagate along different directions.

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Phys. Rev. Research 4, 043109– Published 15 November, 2022
  • Received 17 May 2022
  • Accepted 20 October 2022
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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