Mesoscopic charge fluctuations in the Coulomb blockade regime

Details Mesoscopic charge fluctuations in the Coulomb blockade regime Mesoscopic charge fluctuations in the Coulomb blockade regime

1998-02-14

arxiv.org/abs/cond-mat/9802159v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages

Scientific paper

10.1103/PhysRevLett.81.685

We study mesoscopic fluctuations of the differential capacitance of a dot connected to a lead by a single-mode quantum channel with adjustable conductance G. We show that the amplitude of the fluctuations reaches maximum at a partially opened channel, G\lesssim e^2/\pi\hbar. Parametric correlations of fluctuations at different values of the applied voltage and magnetic field can be studied experimentally, and we find the corresponding correlation functions for the differential capacitance.

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