Transition from local to global feedback control of spiral wave dynamics

Literature Information

Publication Date 2002-03-14
DOI 10.1039/B110641B
Impact Factor 3.676
Authors

Vladimir S. Zykov, Stefan C. Müller


View Original

Abstract

The dynamics of spiral waves rotating in a thin layer of the light-sensitive Belousov–Zhabotinsky reaction are controlled by a time-dependent uniform illumination. The intensity of the illumination is taken to be proportional to the average wave activity observed within a circular domain of the reaction layer. It is shown that an increase of the domain size, corresponding to a transition from local to global feedback control, drastically changes the conditions for stabilization and/or destabilization of the rigidly rotating spiral wave. A theoretical approach is proposed in order to explain the experimentally observed phenomena.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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