title: Resonant phase patterns in a reaction-diffusion system
abstract: Resonance regions similar to the Arnol'd tongues found in single oscillator frequency locking are observed in experiments using a spatially extended periodically forced Belousov-Zhabotinsky system. We identify six distinct 2:1 subharmonic resonant patterns and describe them in terms of the position-dependent phase and magnitude of the oscillations. Some experimentally observed features are also found in numerical studies of a forced Brusselator reaction-diffusion model.
authors.affiliation: Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA.
authors.initials: AL
authors.lastname: Lin
authors.initials: M
authors.lastname: Bertram
authors.initials: K
authors.lastname: Martinez
authors.initials: HL
authors.lastname: Swinney
authors.initials: A
authors.lastname: Ardelea
authors.initials: GF
authors.lastname: Carey