Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Multitone Waveform Synthesis with a Quantum Voltage Noise Source

Published

Author(s)

Samuel P. Benz, Paul D. Dresselhaus, Charles J. Burroughs

Abstract

We have developed a quantum voltage noise source (QVNS) based on pulse-driven Josephson arrays and optimized its waveform synthesis for use with Johnson noise thermometry (JNT). The QVNS synthesizes multitone waveforms with equal amplitude harmonic tones and random relative phases in order to characterize the amplitude-frequency response of the analog and digital electronics of the JNT system. We describe the QVNS circuit design and operation, including the lumped-array Josephson-junction circuit and the unipolar bias technique. In particular, we describe the primary design considerations that determine the voltage accuracy of the harmonic tones.
Citation
IEEE Transactions on Applied Superconductivity
Volume
21
Issue
3

Keywords

Correlation, Digital-analog Conversion, Josephson Arrays, Johnson Noise, Quantization, Noise Measurement, Thermometry.

Citation

Benz, S. , Dresselhaus, P. and Burroughs, C. (2010), Multitone Waveform Synthesis with a Quantum Voltage Noise Source, IEEE Transactions on Applied Superconductivity, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906298 (Accessed March 28, 2024)
Created November 9, 2010, Updated February 19, 2017