caa a22 4500 445866330 CHVBK 20180317145459.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1140/epjd/e2010-00269-2 doi (NATIONALLICENCE)springer-10.1140/epjd/e2010-00269-2 Stochastic resonance between counterpropagating Bloch walls [Elektronische Daten] A nonequilibrium-potential description in a neighborhood of the nonequilibrium Ising-Bloch bifurcation [M.G. dell'Erba, G.G. Izús, R.R. Deza, H.S. Wio] Abstract.: The nonequilibrium Ising-Bloch front bifurcation of the FitzHugh-Nagumo model with nondiffusing inhibitor provides a beautiful instance of an extended bistable system made up of propagating (Bloch) fronts. Moreover, these fronts are chiral and parity-related, and the barrier between them is nonetheless but a stationary Ising front. By means of numerical simulation in the neighborhood of this bifurcation, we demonstrate the existence of stochastic resonance in the transition between Bloch fronts of opposite chiralities, when an additive noise is included. The signal-to-noise ratio is numerically observed to scale with the distance to the critical point. This scaling law is theoretically characterized in terms of an effective nonequilibrium potential. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2010 dell'Erba M.G. Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR, Univ. Nac. de Mar del Plata and CONICET), Deán Funes 3350, B7602, AYL Mar del Plata, Argentina aut Izús G.G. Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR, Univ. Nac. de Mar del Plata and CONICET), Deán Funes 3350, B7602, AYL Mar del Plata, Argentina aut Deza R.R. Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR, Univ. Nac. de Mar del Plata and CONICET), Deán Funes 3350, B7602, AYL Mar del Plata, Argentina aut Wio H.S. Instituto de Física de Cantabria (UC and CSIC), Avda. de los Castros, s/n, 39005, Santander, Spain aut The European Physical Journal D Springer-Verlag 62/1(2011-03-01), 103-108 1434-6060 62:1<103 2011 62 10053 https://doi.org/10.1140/epjd/e2010-00269-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2010-00269-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- dell'Erba M.G. Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR, Univ. Nac. de Mar del Plata and CONICET), Deán Funes 3350, B7602, AYL Mar del Plata, Argentina aut NATIONALLICENCE 700 1- Izús G.G. Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR, Univ. Nac. de Mar del Plata and CONICET), Deán Funes 3350, B7602, AYL Mar del Plata, Argentina aut NATIONALLICENCE 700 1- Deza R.R. Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR, Univ. Nac. de Mar del Plata and CONICET), Deán Funes 3350, B7602, AYL Mar del Plata, Argentina aut NATIONALLICENCE 700 1- Wio H.S. Instituto de Física de Cantabria (UC and CSIC), Avda. de los Castros, s/n, 39005, Santander, Spain aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 62/1(2011-03-01), 103-108 1434-6060 62:1<103 2011 62 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer