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PUBLICATIONS

Quantum Charge Fluctuations and the Polarizability of the Single Electron Box

Published

Author(s)

Konrad Lehnert, B A. Turek, K Bladh, L F. Spietz, D Gunnarsson, P Delsing

Abstract

We measure the average charge on a single-electron box, with an accuracy of 10-3 e as a function of an externally applied potential. At this accuracy, we observe that the total capacitance of the box is a function of temperature, of external potential and of the quasiparticle density of states in the metal from which the box is formed. We find excellent agreement between these measurements and a theory that treats the quantum fluctuations of charge perturbatively.
Citation
Physical Review Letters
Pub Type
Journals

Keywords

quantum charge fluctuations, single-electron circuits

Citation

Lehnert, K. , Turek, B. , Bladh, K. , Spietz, L. , Gunnarsson, D. and Delsing, P. (2008), Quantum Charge Fluctuations and the Polarizability of the Single Electron Box, Physical Review Letters (Accessed April 25, 2024)

Created October 16, 2008