Kinetic inductance traveling wave parametric amplifiers made from 10 nm NbTiN films reach 1.1 quanta excess noise, over 25 dB gain, and multi-GHz bandwidth without magnetic shielding.
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Kinetic Inductance Traveling Wave Parametric Amplifiers Near the Quantum Limit: Methodology and Characterization
Kinetic inductance traveling wave parametric amplifiers made from 10 nm NbTiN films reach 1.1 quanta excess noise, over 25 dB gain, and multi-GHz bandwidth without magnetic shielding.