Parallel pumping of electrons

Maisi, Ville F. and Pashkin, Yuri A. and Kafanov, Sergey and Tsai, Jaw-Shen and Pekola, Jukka P. (2009) Parallel pumping of electrons. New Journal of Physics, 11: 113057. -. ISSN 1367-2630

Abstract

We present the simultaneous operation of ten single-electron turnstiles leading to one order of magnitude increase in current level up to 100 pA. Our analysis of device uniformity and background charge stability implies that the parallelization can be made without compromising the strict requirements of accuracy and current level set by quantum metrology. In addition, we discuss how offset charge instability limits the integration scale of single-electron turnstiles.