Circuit for precision simulation of a capacitive Josephson junction | Zendy

James A. Blackburn | Zendy

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Circuit for precision simulation of a capacitive Josephson junction

Author(s) -

James A. Blackburn

Publication year - 2007

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.2727434

Subject(s) - josephson effect , capacitive sensing , electronic circuit , pulse (music) , computer science , physics , electrical engineering , electronic engineering , optoelectronics , voltage , engineering , superconductivity , condensed matter physics

A circuit is described which functions as a precision electronic analog of a resistively shunted, capacitive Josephson junction. This design offers significant improvements over earlier simulators, particularly because no analog switches are required, and also because high performance op-amps have been matched to the demands of the circuit. The junction analog is used to generate I-V curves, and to model the dynamics when an abrupt bias pulse is applied. The simulator is shown to be very accurate when tested against numerical solutions for the same systems.

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