International Business Machines Corporation
JOSEPHSON TRAVELING WAVE PARAMETRIC AMPLIFIER DEVICE WITH SIDEBAND SUPPRESSION

Abstract:

Devices and/or computer-implemented methods to facilitate a Josephson traveling wave parametric amplifier (JTWPA) device with sideband suppression are provided. According to an embodiment, a device can comprise a plurality of unit cells including at least one Josephson junction and a shunt capacitor. The device can further comprise a plurality of first dispersion resonators coupled to the plurality of unit cells at a first interval. The plurality of first dispersion resonators suppress generation of at least one of a third order harmonic of a pump tone applied to the device, a third order intermodulation product, or a fifth order intermodulation product.