Resonant Phase Matching of Josephson Junction Traveling Wave Parametric Amplifiers
Kevin P. O’Brien, Chris Macklin, Irfan A. Siddiqi, Xiang Zhang · Nonlinear Optics · 2015
We propose a technique to phase-match Josephson-junction traveling wave parametric amplifiers to achieve high gain (over twenty decibels) over a broad bandwidth (multiple GHz) for applications such as the multiplexed readout of quantum coherent circuits.