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

We summarize the recent progress of the Axion Longitudinal Plasma Haloscope (ALPHA)
Consortium, a new experimental collaboration to build a plasma haloscope to search for …

The physics of superconductivity in magic-angle twisted bilayer graphene (MATBG) is a
topic of keen interest in moiré systems research, and it may provide an insight into the …

Superconducting microwave circuits incorporating nonlinear devices, such as Josephson
junctions, are a leading platform for emerging quantum technologies. Increasing circuit …

Squeezed states of light have been used extensively to increase the precision of
measurements, from the detection of gravitational waves to the search for dark matter. In the …

When strongly pumped at twice their resonant frequency, nonlinear resonators develop a
high-amplitude intracavity field, a phenomenon known as parametric self-oscillations. The …

Superconducting parametric amplifiers are crucial components in microwave quantum
circuits for enabling quantum-limited signal readout. The best-performing such amplifiers are …

We review the use of hybrid thin films composed of superconductors and ferromagnets for
creating non-reciprocal electronic components and self-biased detectors of electromagnetic …

Frequency-tunable microwave resonators are in great demand especially in hybrid systems
where precise frequency alignment of resonances is required. Here, we present frequency …

Single-photon detectors based on the superconducting transition-edge sensor are used in a
number of visible to near-infrared applications, particularly for photon-number-resolving …