JOSEPHSON TRAVELING WAVE PARAMETRIC AMPLIFIER AND METHOD

Abstract: a josephson traveling wave parametric amplifier (jtwpa) comprising an input for receiving a signal, an output for providing an amplified output of the signal and one or more circuit segments in series between the input and the output and is configured for receiving a pump tone for transferring energy from the pump tone to the signal and to an idler tone. each of the one or more circuit segments comprises, in series, one or more superconducting nonlinear elements in series, and a first resonator with a first fundamental resonance frequency configured for phase matching the pump tone with the signal and the idler tone and a second resonator with a second fundamental resonance frequency configured for mitigating pump depletion at a frequency corresponding to a higher harmonic of the pump tone with the second fundamental resonance frequency being higher than the first fundamental resonance frequency.

Inventor(s): Aleksei Sharafiev

CPC Classification: H03F19/00 (AMPLIFIERS)

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