title: Phase synchronization in the perturbed Chua circuit.
abstract: We show experimental and numerical results of phase synchronization between the chaotic Chua circuit and a small sinusoidal perturbation. Experimental real-time phase synchronized states can be detected with oscilloscope visualization of the attractor, using specific sampling rates. Arnold tongues demonstrate robust phase synchronized states for perturbation frequencies close to the characteristic frequency of the unperturbed Chua.
authors.affiliation: Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05315-970 São Paulo, São Paulo, Brazil.
authors.forename: Murilo S
authors.initials: MS
authors.lastname: Baptista
authors.forename: Tiago P
authors.initials: TP
authors.lastname: Silva
authors.forename: José C
authors.initials: JC
authors.lastname: Sartorelli
authors.forename: Iberê L
authors.initials: IL
authors.lastname: Caldas
authors.forename: Epaminondas
authors.initials: E
authors.lastname: Rosa