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

Full Text :

Report Date : 01 Sep 2016

Pagination or Media Count : 14

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE