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Wave front propagation failure in an inhomogeneous discrete Nagumo chain: theory and experiments
S Morfu1, V I Nekorkin, J M Bilbault
1Laboratoire d'Electronique, Informatique et Image (LE2i) (FRE.), CNRS 2309, Aile des Sciences de l'Ingénieur, Boîte Postale 47870, 21078 Dijon Cedex, France. smorfu@u-bourgogne.fr
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 22, 2002
Abstract:
The phenomenon of wave propagation failure in a discrete inhomogeneous Nagumo equation is investigated. It is found that the propagation failure occurs not only for small coupling coefficients but as well for an abrupt change of the interelement coupling. The investigation includes the study of the phase space of the system, numerical simulations, and real experiments with a nonlinear electrical lattice.