A JTWPA using flux-tunable negative Kerr nonlinearity to balance chromatic dispersion achieves 20 dB gain over 3 GHz with near-quantum-limited noise.
Aumentado, Superconducting parametric amplifiers: The state of the art in josephson parametric amplifiers, IEEE Microwave Magazine 21, 45 (2020)
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Josephson Traveling-Wave Parametric Amplifier with Inverse Kerr Phase Matching
A JTWPA using flux-tunable negative Kerr nonlinearity to balance chromatic dispersion achieves 20 dB gain over 3 GHz with near-quantum-limited noise.