Quantum-limited microwave parametric amplifiers are genuine key pillars for rising quantum
technologies and, in general, for applications that rely on the successful readout of weak …

We present a theoretical model and experimental characterization of a microwave kinetic
inductance traveling-wave (KIT) amplifier, whose noise performance, measured by a shot …

We present a quantum-limited Josephson-junction-based three-wave-mixing parametric
amplifier, the superconducting nonlinear asymmetric inductive element (SNAIL) parametric …

Superconducting high kinetic inductance elements constitute a valuable resource for
quantum circuit design and millimeter-wave detection. Granular aluminum (grAl) in the …

Degenerate parametric amplifiers (DPAs) exhibit the unique property of phase-sensitive
gain and can be used to noiselessly amplify small signals or squeeze field fluctuations …

A microwave amplifier combining noise performances as close as possible to the quantum
limit with large bandwidth and high saturation power is highly desirable for many solid-state …

We describe an approach to the integrated control and measurement of a large-scale
superconducting multiqubit array comprising up to 10 8 physical qubits using a proximal …

We compare critical quantum sensing to passive quantum strategies to perform frequency
estimation, in the case of single-mode quadratic Hamiltonians. We show that, while in the …

Quantum-limited Josephson parametric amplifiers are crucial components in circuit QED
readout chains. The dynamic range of state-of-the-art parametric amplifiers is limited by …

The fields of light dark matter and neutrino physics offer compelling signals at recoil
energies of eV to even meV, well below the keV thresholds of many techniques currently …