Ultra-high-amplitude Peregrine solitons induced by helicoidal spin-orbit coupling
Quantum Gases
2024-08-02 v1 Pattern Formation and Solitons
Abstract
In the framework of the model of a spatially non-uniform Bose-Einstein condensate with helicoidal spin-orbit (SO) coupling, we find abnormal Peregrine solitons (PSs) on top of flat and periodic backgrounds, with ultra-high amplitudes. We explore the roles of the SO coupling strength and helicity pitch in the creation of these anomalously tall PSs and find that their amplitude, normalized to the background height, attains indefinitely large values. The investigation of the modulation instability (MI) in the same system demonstrates that these PSs exist in a range of relatively weak MI, maintaining the feasibility of their experimental observation.
Keywords
Cite
@article{arxiv.2408.00322,
title = {Ultra-high-amplitude Peregrine solitons induced by helicoidal spin-orbit coupling},
author = {Cui-Cui Ding and Qin Zhou and B. A. Malomed},
journal= {arXiv preprint arXiv:2408.00322},
year = {2024}
}
Comments
To be published as a Letter in Phys. Rev. Research