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Ring Dirac solitons in nonlinear topological systems

Poddubny, Alexander; Smirnova, Daria


We study solitons of the two-dimensional nonlinear Dirac equation with asymmetric cubic nonlinearity. We show that with the nonlinearity parameters specifically tuned, a high degree of localization of both spinor components is enabled on a ring of certain radius. Such ring Dirac soliton can be viewed as a self-induced nonlinear domain wall and can be implemented in nonlinear photonic graphene lattice with Kerr-like nonlinearities. Our model could be instructive for understanding localization...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Physical Review A
DOI: 10.1103/PhysRevA.98.013827
Access Rights: Open Access


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