Nonlocal dark solitons and interactions under fourth-order diffraction

Physical review. E 2026

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Authors: Miaomiao Li, Lijuan Ge, Ming Shen
DOI: 10.1103/w1hk-4qx9
Cited by: 2
References: 78

Abstract

Dark solitons and interactions are investigated in nonlocal media under the condition of fourth-order diffraction (FOD). In the case of weak nonlocality or rectangular nonlocal response function, analytical solutions of dark solitons are obtained via Lagrangian (variational) method. Numerical results show that solitons are unstable (stable) when FOD is anomalous (normal). Interactions of dark soliton with FOD are described analytically with an interacting potential and confirmed by numerical simulations. With the help of attractive force originated from strong degree of nonlocality and anomalous FOD, bound states of dark solitons are generated, otherwise they are always repulsive.

Fields of Study & Subjects

Nonlinear Photonic Systems Quantum optics and atomic interactions Photorefractive and Nonlinear Optics

Publication details

Journal / source
Physical review. E
Publisher
American Physical Society (APS)
Volume
113
Issue
1
Pages
014216–014216
Publication date
6 January 2026
Language
EN