Extended Data Fig. 1: Experimental and numerical results for the disordered system.
a, The averaged intensity profile of the edge state, which peaks at the waveguide positions. b, A fit through the waveguide peak intensities decays exponentially, with a decay length of 47 μm. c, The function gN(r0, r, ε), integrated along the edge, showing a decay length of about 7a. The inset shows the simulated displacement of the wavefunction along the edge for the parameters listed in Methods, from which the group velocity can be extracted. d, The function gN(r0, r, ε), for an initial position r0 deep in the bulk of the system, showing that the bulk localization length is approximately 4a.
