Work

Beating stripe solitons arising from helicoidal spin-orbit coupling in Bose-Einstein condensates

Year: 2025

Type: article

Abstract: We demonstrate that the model of a spatially nonuniform two-component Bose-Einstein condensates (BEC) featuring the helicoidal spin-orbit coupling (SOC), gives rise to dark-bright soliton complexes characterized by spatiotemporal periodic oscillations in each component. These solitons are formed by the superposition of dark and bright ones, and exhibit a beating state over time and a striped state across space, earning them the designation of beating stripe solitons. Our analysis demonstrates that helicoidal SOC significantly affects the formation and dynamical properties of these solitons, also serving as the primary driver for spin oscillations. Through the nonlinear superposition of the beating stripe solitons, a range of intricate scenarios of the interaction between multiple solitons emerges, including head-on collisions, bound states, and parallel states.

Source: Physical review. E

DOI: 10.1103/physreve.111.044203

Authors: Cui-Cui Ding, Qin Zhou, B. A. Malomed

Institutions: Wuhan Textile University, Tel Aviv University, University of Tarapacá

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Natural Science Foundation of Hubei Province

Awards: G4676825099, G704594452, G7416487929, G8627182961