Year: 2001
Type: article
Abstract: We consider adiabatic pumping of electrons through a quantum dot. There are two ways to operate the pump: to create a dc current $\ifmmode \bar{I}\else \={I}\fi{}$ or to create a dc voltage $\overline{V}.$ We demonstrate that, for very slow pumping, $\ifmmode \bar{I}\else \={I}\fi{}$ and $\overline{V}$ are not simply related via the dc conductance G as $\ifmmode \bar{I}\else \={I}\fi{}=\overline{V}G.$ For the case of a chaotic quantum dot, we consider the statistical distribution of $\overline{V}G\ensuremath{-}\ifmmode \bar{I}\else \={I}\fi{}.$ Results are presented for the limiting cases of a dot with single-channel and with multichannel point contacts.
Authors: M. L. Polianski, P. W. Brouwer
Institution: Cornell University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2092008305