Quasisolitons in self-diffusive excitable systems, or Why asymmetric diffusivity obeys the Second Law
Quasisolitons in self-diffusive excitable systems, or Why asymmetric diffusivity obeys the Second Law
Solitons, defined as nonlinear waves which can reflect from boundaries or transmit through each other, are found in conservative, fully integrable systems. Similar phenomena, dubbed quasi-solitons, have been observed also in dissipative, "excitable" systems, either at finely tuned parameters (near a bifurcation) or in systems with cross-diffusion. Here we demonstrate …