Accession Number:

AD1018784

Title:

Characterization and Modeling of Superconducting Josephson Junction Arrays at Low Voltage and Liquid Helium Temperatures

Descriptive Note:

Technical Report

Corporate Author:

Space and Naval Warfare Systems Center Pacific San Diego United States

Personal Author(s):

• Nayfeh,Osama
• Lerum,Lance
• Romero,Hector
• Fahem,Mohammed

Report Date:

2016-09-01

Pagination or Media Count:

14.0

Abstract:

This technical report demonstrates the capabilities to measure niobium-based Josephson junction arrays at liquid helium temperatures at less than 50 mV. We find current switching with voltage consistent with the transition from Cooper-pair to quasiparticle tunneling. The results agree with the industrial manufacturers specifications. We use a recently created empirical model applicable to Josephson junction devices and arrays and obtain excellent fits to the characteristics and extract the non-ideality. These capabilities and calibration results will assist in the characterization of advanced superconductor-ionic quantum memory and computation devices.

Descriptors:

• Josephson junctions
• superconductors
• low voltage
• quantum tunneling
• critical temperature
• Low temperature
• Liquid helium

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE