Mesoscopic Charge Fluctuations in the Coulomb Blockade Regime

A. Kaminski; I. L. Aleiner; L. I. Glazman

doi:10.1103/PhysRevLett.81.685

Mesoscopic Charge Fluctuations in the Coulomb Blockade Regime

A. Kaminski, I. L. Aleiner, and L. I. Glazman

Phys. Rev. Lett. 81, 685 – Published 20 July 1998

Abstract

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 its maximum at a partially opened channel $G ≲ e^{2} / π ħ$ . 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.

Received 17 February 1998

DOI:https://doi.org/10.1103/PhysRevLett.81.685

Authors & Affiliations

A. Kaminski¹, I. L. Aleiner², and L. I. Glazman¹

¹Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455
²Department of Physics, State University of New York, Stony Brook, New York 11794