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Asymmetric vortex solitons in nonlinear periodic lattices

Alexander, Tristram J; Sukhorukov, Andrey; Kivshar, Yuri


We reveal the existence of asymmetric vortex solitons in ideally symmetric periodic lattices and show how such nonlinear localized structures describing elementary circular flows can be analyzed systematically using the energy-balance relations. We present the examples of rhomboid, rectangular, and triangular vortex solitons on a square lattice and also describe novel coherent states where the populations of clockwise and anticlockwise vortex modes change periodically due to a...[Show more]

CollectionsANU Research Publications
Date published: 2004-08-03
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.93.063901


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