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 characterize a fluxonium qubit consisting of a Josephson junction inductively shunted
with a NbTiN nanowire superinductance. We explain the measured energy spectrum by …

Dephasing induced by residual thermal photons in the readout resonator is a leading factor
limiting the coherence times of qubits in the circuit quantum electrodynamics architecture …

To reduce the level of thermally generated electrical noise transmitted to superconducting
quantum devices operating at 20 mK, we have developed thin-film microwave power …

Atomic three-level Λ systems dressed by two coherent electromagnetic fields can exhibit
coherent population trapping and electromagnetically induced transparency (EIT) due to …

We report on the investigation of a superconducting anharmonic multilevel circuit that is
coupled to a harmonic readout resonator. We observe multiphoton transitions via virtual …

Experiments to probe the basic quantum properties of motional degrees of freedom of
mechanical systems have developed rapidly over the last decade. One promising approach …

State-of-the-art transmon qubits rely on large capacitors, which systematically improve their
coherence due to reduced surface-loss participation. However, this approach increases both …

A superconducting qubit in the strong dispersive regime of circuit quantum electrodynamics
is a powerful probe for microwave photons in a cavity mode. In this regime, a qubit excitation …

Quantum networks will enable extraordinary capabilities for communicating and processing
quantum information. These networks require a reliable means of storage, retrieval, and …