  Quantum fluctuations of Coulomb blockade are investigated as a function of
the coupling to reservoirs in semiconductor quantum dots. We use fluctuations
in the distance between peaks $\Delta N$ apart to characterize both the
amplitude and correlation of peak motion. For strong coupling, peak motion is
greatly enhanced at low temperature, but does not show an increase in
peak-to-peak correlation. These effects can lead to anomalous temperature
dependence in the Coulomb valleys, similar to behavior ascribed to Kondo
physics.
