Reaction-diffusion systems using single-electron oscillators

Reaction-diffusion system The R-D system is a nonequilibrium chemical system consisting of two or more chemicals in which chemical reaction and diffusion coexist under open conditions. It produces orderly spatiotemporal patterns of chemical concentration called the dissipative structure; a simple instance is shown in Fig. 1 (a). Various RD systems exist in nature, and a wide variety of dynamic, self-organizing natural phenomena can be explained using the concept of the dissipative structure. Developmental biologists have the opinion that life itself is a dissipative structure produced by the natural world that is in fact a large RD system. The RD system can be considered an aggregate of coupled chemical oscillators, as shown in Fig. 1 (b). Each oscillator represents a local reaction of chemicals and exhibits nonlinear dynamics. It interacts and correlates with its neighbors through the diffusion of chemicals and, as a result, the RD system produces orderly spatiotemporal structures.