Parallel quantized charge pumping

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.

References in corpus (4)

• Single-parameter non-adiabatic quantized charge pumping
• Non-adiabadic charge pumping in a hybrid SET transistor
• Single-parameter quantized charge pumping in high magnetic fields
• Enhanced current quantization in high frequency electron pumps in a perpendicular magnetic field

Cited by in corpus (15)

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• Quantum pumping in graphene
• An accurate single-electron pump based on a highly tunable silicon quantum dot
• Accurate high speed single-electron quantum dot preparation
• Synchronized single electron emission from dynamical quantum dots
• Integrated quantized electronics: a semiconductor quantized voltage source
• Non-adiabatic Electron Pumping through Interacting Quantum Dots
• Gate driven adiabatic quantum pumping in graphene
• Single- and few-electron dynamic quantum dots in a perpendicular magnetic field
• Pumped shot noise in adiabatically modulated graphene-based double-barrier structures
• Charge pumping in strongly-coupled molecular quantum dots
• Towards quantized current arbitrary waveform synthesis
• Design and operation of CMOS-compatible electron pumps fabricated with optical lithography
• Effect of device design on charge offset drift in Si/SiO${}_2$ single electron devices
• Scalable Parallel Single-Electron Pumps in Silicon with Split-Source Control in the Nanoampere Regime