Distribution of Coulomb peak conductances, scaled to dimensionless conductances (a) in Eq. (2) for the orthogonal (B=0) ensemble. Inset: Example of a set of peaks from which the distribution was obtained. (b) Distribution for the unitary (B0) ensemble, showing suppression of low-conductance peaks. Inset: Grayscale plot of small region of gate-gate sweep used to derive these distributions, showing Coulomb 'ridges' along lines of constant area (lighter = higher conductance). Error bars show uncertainty assuming 90 statistically independent samples.

From:

• J. A. Folk, et al, Phys. Rev. Lett., 76, 1699, (1996) PDF