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Pumped current and voltage for an adiabatic quantum pump

M. L. Polianski·P. W. Brouwer
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Abstract

We consider adiabatic pumping of electrons through a quantum dot. There are two ways to operate the pump: to create a dc current ${\bar I}$ or to create a dc voltage ${\bar V}$. We demonstrate that, for very slow pumping, ${\bar I}$ and ${\bar V}$ are not simply related via the dc conductance $G$ as $\bar I = \bar V G$. For the case of a chaotic quantum dot, we consider the statistical distribution of ${\bar V} G - {\bar I}$. Results are presented for the limiting cases of a dot with single channel and with multichannel point contacts.

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M. L. Polianski, P. W. Brouwer. 2001-02-08. Pumped current and voltage for an adiabatic quantum pump. https://doi.org/10.1103/physrevb.64.075304

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