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parametric amplifier

Thesis presents a detailed characterization of a parametric amplifier, in terms of its frequency tuneability, Josephson junction characteristics, quality factors, driving power regimes, and its gain performance.

Kochetov Bogdan and Fedorov Arkady, 2015
Phys. Rev. B, 92, pp. 224304

The paper theoretically studies effects of the higher non linearities originated from a Josephson junction on the Josephson parametric amplifier (JPA). The results help to understand the gain saturation and reveal some of the effects which were not identified in the previous theoretical studies. Some interesting stipulations on the possible new regimes of the JPA are also deiscussed.

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