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 …

Advances in materials science and engineering have played a central role in the
development of classical computers and will undoubtedly be critical in propelling the …

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

The performance of superconducting circuits for quantum computing is limited by materials
losses. In particular, coherence times are typically bounded by two-level system (TLS) …

The strong coupling limit of cavity quantum electrodynamics (QED) implies the capability of a
matterlike quantum system to coherently transform an individual excitation into a single …

We demonstrate strong magnon-photon coupling of a thin-film Permalloy device fabricated
on a coplanar superconducting resonator. A coupling strength of 0.152 GHz and a …

Coupled microwave photon-magnon hybrid systems offer promising applications by
harnessing various magnon physics. At present, in order to realize high coupling strength …

Light–matter interactions at the single-particle level have generally been explored in the
context of atomic, molecular and optical physics. Recent advances motivated by quantum …

Superconducting microwave resonators are reliable circuits widely used for detection and as
test devices for material research. A reliable determination of their external and internal …

Bosonic quantum codes redundantly encode quantum information in the states of a quantum
harmonic oscillator, making it possible to detect and correct errors. Schrödinger cat codes …