The Influence of the McCumber Parameter on Parametric Amplification of High-Frequency Radiation by Josephson Junctions
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The influence of the internal capacity of a Josephson junction on the parametric amplification of external electromagnetic radiation was studied in terms of a resistively and capacitively shunted junction model. The influence of the McCumber parameter on parametric amplification was clarified. It is shown that the additional regions of amplification can occur near subharmonic Shapiro steps in the case of Josephson junctions with internal capacity.
KeywordsJosephson junction resistively shunted junction model parametric amplification McCumber parameter
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