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Imprinting a Three-Dimensional Skyrmion in a Bose–Einstein Condensate Via a Raman Process

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Abstract

We describe an experimental protocol for the creation of a three-dimensional topological defect, a skyrmion, in a pseudo-spin-1/2 Bose–Einstein condensate (BEC) confined in a spin-independent harmonic trap. We show that one can imprint the skyrmion on the BEC within a few tens of microseconds using a Raman process with the structured laser fields. We numerically solved the mean-field Gross–Pitaevskii equation to examine our imprinting scheme and found that all parameters we use are experimentally feasible.

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Acknowledgements

We thank Elisha Haber for discussion. Zekai Chen and Nicholas P. Bigelow are supported by NSF grant PHY 1708008 and NASA/JPL RSA 1656126. S.X. Hu is supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856, the University of Rochester, and the New York State Energy Research and Development Authority. The support of DOE does not constitute an endorsement by DOE of the views expressed in this paper. The authors thank the Center for Integrated Research Computing (CIRC) at the University of Rochester for providing computational resources and technical support.

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Authors and Affiliations

  1. Department of Physics and Astronomy, University of Rochester, Rochester, NY, 14627, USA

    Zekai Chen & Nicholas P. Bigelow

  2. Laboratory for Laser Energetics, University of Rochester, Rochester, NY, 14623, USA

    S. X. Hu

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  1. Zekai Chen
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Correspondence to Nicholas P. Bigelow.

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Chen, Z., Hu, S.X. & Bigelow, N.P. Imprinting a Three-Dimensional Skyrmion in a Bose–Einstein Condensate Via a Raman Process. J Low Temp Phys 208, 172–183 (2022). https://doi.org/10.1007/s10909-022-02724-w

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  • DOI: https://doi.org/10.1007/s10909-022-02724-w

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