Degenerate Parametric Amplification via Three-Wave Mixing Using Kinetic Inductance
Daniel J. Parker, Mykhailo Savytskyi, Wyatt Vine, Arne Laucht, T. Duty, Andrea Morello, Arne L. Grimsmo, J. Jarryd
Abstract
Microwave parametric amplifiers operating at the quantum noise limit have become indispensable tools for a range of cryogenic quantum technologies. These amplifiers are typically constructed from nonlinear Josephson junctions, which limit the ability to amplify high-power signals. This study reports a device based instead on the weakly nonlinear kinetic inductance intrinsic to a superconducting film of niobium titanium nitride. The amplifier offers large phase-sensitive gain and high power handling, plus a simple design and fabrication process. As it contains no junctions, it is robust to electrostatic discharge and potentially operable under high temperatures and large magnetic fields.