Over the last two decades, tremendous advances have been made for constructing large-
scale quantum computers. In particular, quantum computing platforms based on …

In the past 20 years, impressive progress has been made both experimentally and
theoretically in superconducting quantum circuits, which provide a platform for manipulating …

This Letter reports on a cavity haloscope search for dark matter axions in the Galactic halo in
the mass range 2.81–3.31 μ eV. This search utilizes the combination of a low-noise …

Hybrid quantum systems in which acoustic resonators couple to superconducting qubits are
promising quantum information platforms. High quality factors and small mode volumes …

Faster and more accurate state measurement is required for progress in superconducting
qubit experiments with greater numbers of qubits and advanced techniques such as …

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

The high water storage capacity of minerals in Earth's mantle transition zone (410-to 660-
kilometer depth) implies the possibility of a deep H2O reservoir, which could cause …

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 …

Josephson parametric amplifiers have become a critical tool in superconducting device
physics due to their high gain and quantum-limited noise. Traveling wave parametric …

We report on the design and performance of an on-chip microwave circulator with a widely
(GHz) tunable operation frequency. Nonreciprocity is created with a combination of …