Spontaneous and engineered transformations of topological structures in nonlinear media with gain and loss

14 Jul 2019  ·  Kochetov B. A., Chelpanova O. G., Tuz V. R., Yakimenko A. I. ·

In contrast to conservative systems, in nonlinear media with gain and loss the dynamics of localized topological structures can exhibit unique features that can be controlled externally. We propose a robust mechanism to perform topological transformations changing characteristics of dissipative vortices and their complexes in a controllable way... We show that a properly chosen control carries out the evolution of dissipative structures to regime with spontaneous transformation of the topological excitations or drives generation of vortices with control over the topological charge. read more

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Pattern Formation and Solitons