title: Experimental investigation of chimera states with quiescent and synchronous domains in coupled electronic oscillators.
abstract: Chimera states, that is, dynamical regimes characterized by the existence of a symmetry-broken solution where a coherent domain and an incoherent one coexist, have been theoretically demonstrated and numerically found in networks of homogeneously coupled identical oscillators. In this work we experimentally investigate the behavior of a closed and an open chain of electronic circuits with neuron-like spiking dynamics and first neighbor connections. Experimental results show the onset of a regime that we call chimera states with quiescent and synchronous domains, where synchronization coexists with spatially patterned oscillation death. The whole experimental bifurcation scenario, showing how disordered states, synchronization, chimera states with quiescent and synchronous domains, and oscillatory death states emerge as coupling is varied, is presented.
authors.affiliation: DIEEI, Universita degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
authors.forename: Lucia Valentina
authors.initials: LV
authors.lastname: Gambuzza
authors.affiliation: DIEEI, Universita degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
authors.forename: Arturo
authors.initials: A
authors.lastname: Buscarino
authors.affiliation: DIEEI, Universita degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
authors.forename: Sergio
authors.initials: S
authors.lastname: Chessari
authors.affiliation: DIEEI, Universita degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Fortuna
authors.affiliation: CNR-Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Florence, Italy.
authors.forename: Riccardo
authors.initials: R
authors.lastname: Meucci
authors.affiliation: DIEEI, Universita degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
authors.forename: Mattia
authors.initials: M
authors.lastname: Frasca
mesh_terms: D004553:Electric Conductivity; D055615:Electrical Equipment and Supplies; D017711:Nonlinear Dynamics