Maximizing the Resolution of a Dual RF Drive Programmable Josephson Voltage Standard

Author

Georgakopoulos, Dimitrios

Author_Institution

Nat. Meas. Inst., West Lindfield, NSW, Australia

Volume

64

Issue

6

fYear

2015

fDate

Jun-15

Firstpage

1503

Lastpage

1508

Abstract

A dual radio frequency drive programmable Josephson voltage standard can generate quasi-continuous voltages with quantum accuracy. This paper focuses on the mathematical methods used to maximize the achievable voltage resolution and describes two algorithms that can be employed. Quasi-continuous voltages with a resolution of a few nanovolts have been achieved using Josephson junction arrays with missing junctions and an almost arbitrary segment structure.

Keywords

electric drives; mathematical analysis; measurement standards; superconducting junction devices; voltage measurement; Josephson junction array; arbitrary segment structure; dual RF drive programmable Josephson voltage standard; dual radiofrequency drive programmable Josephson voltage standard; mathematical method; quantum accuracy; quasicontinuous voltage generation; Approximation algorithms; Approximation methods; Cooling; Junctions; Radio frequency; Schedules; Standards; Josephson standards; mixed integer programming; quantum electrical standards; voltage standards; voltage standards.;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2015.2406054

Filename

7054501