COMPETITION OF SELF-ORGANIZED ROTATING SPIRAL AUTOWAVES IN A NONEQUILIBRIUM DISSIPATIVE SYSTEM OF THREE-LEVEL PHASER

摘要

Understanding of the nature of birth, evolution, competition and dynamical stabilization (or destruction) of spatio-temporal dissipative structures (DS) is of great importance to various areas of modern physics, as well as to significant branches of chemistry, biology etc. The phenomenon of self-organization of DS in nonequilibrium systems is nowadays a subject of intensive experimental investigation and computer-oriented modeling. Rotating spiral waves (RSW) represent a universal class of robust DS observed not only in diverse fields of the fundamental science, but in several types of man-made active media (or arrays of units) used e.g. in quantum electronics [1] or nanoelectronics [2]. All these RSW have the certain topological charges similar to charges of singular optics vortices. But, in contrast to conservative singular optics vortices, our dissipative RSW are self-sustained autostructures, namely autowaves. They possess a responsibility of non-decaying propagation in active media (maintained by the balance of an appropriate pumping and corresponding dissipation of energy).