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 June 23, 2026)
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Quantum Charge Fluctuations and the Polarizability of the Single Electron Box
Published
Author(s)
, 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
Issues
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Created October 16, 2008