HIGH-SPEED ELECTRONIC ANALOG OF JOSEPHSON CONTACTS AND SUPERCONDUCTING QUANTUM INTERFEROMETERS.

A high-speed electronic analog is described that makes it possible to model with high accuracy the complicated processes in single Josephson contacts as well as one- and two-contact superconducting quantum interferometers. Two types of pulse schemes-A and B-are proposed for modeling the superconducting component of the current through the Josephson contact; these correspond to two different types of Josephson phases. It is shown that the range of operating frequencies of the analog can amount to 100 kHz when the frequency of the reference oscillator is 1 MHz. The accuracy of the modeling is examined. Examples of the modeling of the complicated processes in superconducting quantum interferometers are given.