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Chaos Solitons & Fractals

Observation of ultraslow optical solitons and vortex solitons in a room-temperature atomic gas via electromagnetically induced transparency

Hongqiao Zhang, Zhaohui Li, Yurong Wang, Chao Hang, Guang Wu

Published Feb 4, 2025• 5 citations
Publisher
DOI
10.1016/j.chaos.2025.116058

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We propose a scheme to exhibit a Stern–Gerlach effect of n-component (n>2) high-dimensional ultraslow optical solitons in a coherent atomic system with (n+1)-pod level configuration via electromagnetically induced transparency (EIT). Based on Maxwell–Bloch equations, we derive coupled (3+1)-dimensional nonlinear Schrödinger equations governing the spatial-temporal evolution of n probe-field envelopes. We show that under EIT conditions significant deflections of the n components of coupled ultraslow optical solitons can be achieved by using a Stern–Gerlach gradient magnetic field. The stability of the ultraslow optical solitons can be realized by an optical lattice potential contributed from a far-detuned laser field.