Optimal optical Ferris wheel solitons in a nonlocal Rydberg medium

TL;DR

This paper introduces a method to generate stable optical Ferris wheel solitons in a nonlocal Rydberg medium by optimizing atomic density and detuning, enabling long-distance propagation with high fidelity.

Contribution

It presents a novel scheme for creating stable optical Ferris wheel solitons in a nonlocal Rydberg EIT medium, demonstrating high fidelity over long distances.

Findings

Fidelity exceeds 0.96 over 160 diffraction lengths

Stable higher-order OFW solitons with arbitrary winding numbers are achievable

Optimal atomic density and detuning are crucial for soliton stability

Abstract

We propose a scheme for the creation of stable optical Ferris wheel(OFW) solitons in a nonlocal Rydberg electromagnetically induced transparency(EIT) medium. Depending on a careful optimization to both the atomic density and the one-photon detuning, we obtain an appropriate nonlocal potential provided by the strong interatomic interaction in Rydberg states which can perfectly compensate for the diffraction of the probe OFW field. Numerical results show that the fidelity keeps larger than 0.96 while the propagation distance has exceeded 160 diffraction lengths. Higher-order OFW solitons with arbitrary winding numbers are also discussed. Our study provides a straightforward route to generate spatial optical solitons in the nonlocal response region of cold Rydberg gases.