title: Noise-induced phase bistability via stochastic rocking.
abstract: We study the effect of a randomly modulated harmonic driving on the phase behavior of a nonlinear oscillator. A multiple-scale analysis shows that the system is formally equivalent to a rocked oscillator, in which a modulated harmonic driving locks the system at one of two phases, both of which are in quadrature with that of the driving. This theoretically predicted noise-induced bistable phase locking is reproduced with numerical simulations of a stochastic Stuart-Landau model, and verified experimentally in a nonlinear electronic circuit.
authors.affiliation: Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Colom 11, 08222 Terrassa, Spain.
authors.forename: Kestutis
authors.initials: K
authors.lastname: Staliunas
authors.forename: Germán J
authors.initials: GJ
authors.lastname: de Valcárcel
authors.forename: Javier M
authors.initials: JM
authors.lastname: Buldú
authors.forename: Jordi
authors.initials: J
authors.lastname: Garcia-Ojalvo