UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Parallel quantized charge pumping

Wright, SJ; Blumenthal, MD; Pepper, M; Anderson, D; Jones, GAC; Nicoll, CA; Ritchie, DA; (2009) Parallel quantized charge pumping. PHYS REV B , 80 (11) , Article 113303. 10.1103/PhysRevB.80.113303.

Full text not available from this repository.

Abstract

Two quantized charge pumps are operated in parallel. The total current generated is shown to be far more accurate than the current produced with just one pump operating at a higher frequency. With the application of a perpendicular magnetic field the accuracy of quantization is shown to be <20 ppm for a current of 108.9 pA. The scheme for parallel pumping presented in this work has applications in quantum information processing, the generation of single photons in pairs and bunches, neural networking, and the development of a quantum standard for electrical current. All these applications will benefit greatly from the increase in output current without the characteristic decrease in accuracy as a result of high-frequency operation.

Type:Article
Title:Parallel quantized charge pumping
DOI:10.1103/PhysRevB.80.113303
Keywords:SINGLE ELECTRONS, CHANNEL
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

Archive Staff Only: edit this record