Degenerate Parametric Amplification via Three-Wave Mixing Using Kinetic Inductance

Microwave parametric amplifiers operating at the quantum noise limit have become indispensable tools for a range of cryogenic technologies. These are typically constructed from nonlinear Josephson junctions, which ability to amplify high-power signals. This study reports device based instead on weakly kinetic inductance intrinsic superconducting film niobium titanium nitride. The amplifier offers large phase-sensitive gain and high power handling, plus simple design fabrication process. As it contains no is robust electrostatic discharge potentially operable under temperatures magnetic fields.