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 : https://apps.dtic.mil/dtic/tr/fulltext/u2/1018784.pdf


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