The aim of this review is to provide quantum engineers with an introductory guide to the
central concepts and challenges in the rapidly accelerating field of superconducting …

Remarkable advancements in coherence and control fidelity have been achieved in recent
years with cryogenic solid-state qubits. Nonetheless, thermalizing such devices to their …

We study the parity-symmetry-breaking quantum phase transition (QPT) in a cavity
magnonic system driven by a parametric field, where the magnons in a ferrimagnetic yttrium …

Amplification of weak microwave signals with minimal added noise is of importance to
science and technology. Artificial quantum systems, based on superconducting circuits, can …

We present measurements of a topological property, the Chern number (C 1), of a closed
manifold in the space of two-level system Hamiltonians, where the two-level system is …

We propose and demonstrate a read-out technique for a superconducting qubit by
dispersively coupling it with a Josephson parametric oscillator. We employ a tunable quarter …

We have developed and measured a high-gain quantum-limited microwave parametric
amplifier based on a superconducting lumped LC resonator with the inductor L including an …

We realize a microwave quantum-limited amplifier that is directional and can therefore
function without the front circulator needed in many quantum measurements. The …

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

The parametric phase-locked oscillator (PPLO) is a class of frequency-conversion device,
originally based on a nonlinear element such as a ferrite ring, that served as a fundamental …