Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots

Details Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots

1998-10-22

arxiv.org/abs/cond-mat/9810283v2

Phys. Rev. Lett. 83, 1403 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

figures made smaller so download works. Revised, including new data. Related papers at http://www.stanford.edu/group/MarcusLab

Scientific paper

10.1103/PhysRevLett.83.1403

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.

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