Fig. 2.

Results for the linear array of driven colloidal oscillators, shown schematically in grey (not to scale). (a) Kymographs showing sin ϕ_i at three heights above the wall. With increasing h, the traveling wave becomes frustrated, with the introduction of wobbles (arrows) and phase defects (circles). (b) Numerical results from model. (c) Fraction of total coupling corresponding to interacting with different neighbors, as a function of h. The shaded red region represents the experimental parameter regime.