State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Department of Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, Kyiv 01601, Ukraine.
Phys Rev E. 2019 Dec;100(6-1):062202. doi: 10.1103/PhysRevE.100.062202.
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 potential 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.
与保守系统相反，在具有增益和损耗的非线性介质中，局域拓扑结构的动力学表现出许多可以外部控制的独特特征。我们提出了一种稳健的机制，用于执行拓扑变换，以可控的方式改变耗散涡旋及其复合物的特性。我们表明，适当选择的势可以实现耗散结构的演化，从而使拓扑激发发生自发转变，或者在控制拓扑电荷的情况下产生涡旋。
