Imprinting a Three-Dimensional Skyrmion in a Bose–Einstein Condensate Via a Raman Process
Journal of low temperature physics(2022)
摘要
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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关键词
3D Skyrmion,Bose–Einstein condensate,Raman process
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