Work

Symmetry-breaking bifurcations of pure-quartic solitons in dual-core couplers

Year: 2024

Type: article

Abstract: We investigate spontaneous symmetry- and antisymmetry-breaking bifurcations of solitons in a nonlinear dual-core waveguide with the pure-quartic dispersion and Kerr nonlinearity. Symmetric, antisymmetric, and asymmetric pure-quartic solitons (PQSs) are found, and their stability domains are identified. The bifurcations for both the symmetric and antisymmetric PQSs are of the supercritical type (alias phase transitions of the second kind). Direct simulations of the perturbed evolution of PQSs corroborate their stability boundaries predicted by the analysis of small perturbations.

Source: Optics Letters

DOI: 10.1364/ol.538613

Authors: Pengfei Li, Liangliang Dong, Dumitru Mihalache, Boris A. Malomed

Institutions: Taiyuan Normal University, Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Tel Aviv University, University of Tarapacá

Language: English

Topic: Nonlinear Photonic Systems

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Israel Science Foundation

Awards: G3746375970, G8863833762