Ms Oksana Chelpanova (Taras Shevchenko National University of Kyiv)
In contrast to conservative systems, in nonlinear media with gain and loss the dynamics of localized topological structures exhibit many 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.
Ms Oksana Chelpanova (Taras Shevchenko National University of Kyiv) Dr Oleksandr Yakimenko (Taras Shevchenko National University of Kyiv)