Quantum-mechanical effects at the macroscopic level were first explored in Josephson-
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …

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

During the last ten years, superconducting circuits have passed from being interesting
physical devices to becoming contenders for near-future useful and scalable quantum …

We propose an experimentally feasible method for enhancing the atom-field coupling as
well as the ratio between this coupling and dissipation (ie, cooperativity) in an optical cavity …

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 show how macroscopic magnetic samples like yttrium iron garnet samples are excellent
candidates for producing deterministic quantum entanglement and, thus, providing a …

We report the results of an axion dark matter search over an axion mass range of 9.39–9.51
μ eV. A flux-driven Josephson parametric amplifier (JPA) was added to the cryogenic …

Squeezing of the electromagnetic vacuum is an essential metrological technique used to
reduce quantum noise in applications spanning gravitational wave detection, biological …

We show how to create quantum squeezed states of magnons and phonons in a cavity
magnomechanical system. The magnons are embodied by a collective motion of a large …

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 …