Pattern formation in two-frequency forced parametric waves.

  title={Pattern formation in two-frequency forced parametric waves.},
  author={H Arbell and Jay Fineberg},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={65 3 Pt 2A},
We present an experimental investigation of superlattice patterns generated on the surface of a fluid via parametric forcing with two commensurate frequencies. The spatiotemporal behavior of four qualitatively different types of superlattice patterns is described in detail. These states are generated via a number of different three-wave resonant interactions. They occur either as symmetry-breaking bifurcations of hexagonal patterns composed of a single unstable mode or via nonlinear… CONTINUE READING
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