Quantum digital alternating-voltage synthesizers. The present state and future prospects

The particular features of the synthesis of an alternating current based on the Josephson effect are considered, and diagrams of the phase locking zones are presented which enable the operation of quantum digital voltage synthesizers to be clearly explained. Specific methods for constructing them are described and the requirements imposed on the bias source of Josephson integrated circuits are formulated.Translated from Izmeritelnaya Tekhnika, No. 1, pp. 55–62, January, 2005.