Title

Quantum fluctuation effects in a single electron box

Document Type

Article

Publication Date

2-2-1994

Abstract

Quantum fluctuation effects in a single electron box are analyzed by considering the gate voltage fluctuations with the use of the quantum Langevin model. At T=0, we derive an analytic expression for the junction charge as a function of the gate voltage and its fluctuations. It is shown that, at T=0, the sawtooth shape of the junction charge, as predicted by existing theories, is rounded off by the quantum fluctuation effects. At finite temperature, the theory is compared with experiments, and a good fit is obtained at all the relevant temperatures. © 1994.

Publication Source (Journal or Book title)

Physica B: Physics of Condensed Matter

First Page

1021

Last Page

1022

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