23-24 December 2019
Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine
Europe/Kiev timezone

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

23 Dec 2019, 17:50
5m
322 (Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine)

322

Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine

Metrolohichna Str. 14b, Kyiv, Ukraine
Poster Condensed Matter Physics Poster session

Speaker

Ms Oksana Chelpanova (Taras Shevchenko National University of Kyiv)

Description

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.

Primary authors

Ms Oksana Chelpanova (Taras Shevchenko National University of Kyiv) Dr Oleksandr Yakimenko (Taras Shevchenko National University of Kyiv)

Presentation Materials

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