Figure 9
From: Experimental Microwave Scattering in Polygonal Billiards
(a) Histogram: Numerically calculated nearest neighbor distribution P(s) in the unfolded spectrum of the irrational triangle, for the first 145000 energy eigenvalues above the first 5000 ones. (b) Symbols: Same as (a), in a logarithmic scale. (c) Symbols: Same as (a) for the 291 eigenvalues covered by the 3–10 GHz experimental range. (d) Symbols: Measured P(s) averaged in 6 antenna positions in the 3–10 GHz frequency range, for which only 220 resonances have been observed on average. Blue (red) solid line is the Poisson (Wigner) distribution.
