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Progress toward a 1V Pulse-Driven AC Josephson Voltage Standard

Published

Author(s)

Samuel P. Benz, Paul D. Dresselhaus, Norman F. Bergren, Regis Landim

Abstract

We present a new record output voltage of 275 mVrms, which is a 25% improvement over the maximum achieved with previous ac Josephson voltage standard circuits. We demonstrate operating margins for these circuits and use them to measure the harmonic distortion of a commercial digitizer. Having exceeded the threshold of 125 mVrms for a single array of Josephson junctions, we propose an 8-array circuit capable of achieving 1 Vrms.
Proceedings Title
Conference on Precision Electromagnetic Measurements Digest
Conference Dates
June 8-13, 2008
Conference Location
Boulder, CO
Conference Title
Conference on Precision Electromagnetic Measurements

Keywords

Digital-analog conversion, Josephson arrays, Quantization, Standards, Superconductor-normal-superconductor devices, Voltage measurement
Created June 9, 2008, Updated January 27, 2020