Abstract: We analyze the properties of vortex solitons generated in Kerr and non-Kerr nonlinear optical media, including the vortex drift and rotation into a diffracting Gaussian beam. We also present our recent analytical and experimental results on the vortex-induced break-up of a dark-soliton stripe, and discuss a connection of this phenomenon with the well-known Aharonov-Bohm effect in solids. !25
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