Josephson meta-materials have recently emerged as very promising platform for
superconducting quantum science and technologies. Their distinguishing potential resides …

The field of propagating quantum microwaves is a relatively new area of research that is
receiving increased attention due to its promising technological applications, both in …

Entangled microwave photons form a fundamental resource for quantum information
processing and sensing with continuous variables. We use a low-loss Josephson …

We demonstrate a high dynamic range Josephson parametric amplifier (JPA) in which the
active nonlinear element is implemented using an array of rf-SQUIDs. The device is matched …

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

We demonstrate a Josephson parametric amplifier design with a band-pass impedance-
matching network based on a third-order Chebyshev prototype. We measured eight …

Surface structures on radio-frequency (RF) superconductors are crucially important in
determining their interaction with the RF field. Here we investigate the surface compositions …

Quantum communication test beds provide a useful resource for experimentally
investigating a variety of communication protocols. Here we demonstrate a superconducting …

Simultaneous ideal quantum measurements of multiple single-photon-level signals would
advance applications in quantum information processing, metrology, and astronomy but …

Josephson parametric amplifiers are an important part of a modern superconducting
quantum computing platform and squeezed quantum states generation devices. Traveling …