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 prospect of computational hardware with quantum advantage relies critically on the
quality of quantum-gate operations. Imperfect two-qubit gates are a major bottleneck for …

Enhancing optical nonlinearities so that they become appreciable on the single photon level
and lead to nonclassical light fields has been a central objective in quantum optics for many …

We present a systematic analysis of the internal losses of superconducting coplanar
waveguide microwave resonators based on niobium thin films on silicon substrates. In …

Quantum emitters interacting with photonic band-gap materials lead to the appearance of
qubit-photon bound states that mediate decoherence-free, tunable emitter-emitter …

A parity-time (PT)-symmetric system emerging from a quantum dynamics is highly desirable
in order to understand the possible implications of PT symmetry in the next generation of …

We report on ultrastrong coupling between a superconducting flux qubit and a resonant
mode of a system comprised of two superconducting coplanar stripline resonators coupled …

We provide an explicit construction of a universal gate set for continuous-variable quantum
computation with microwave circuits. Such a universal set has been first proposed in …

Quantum state transfer is one of the basic tasks in quantum information processing. We here
propose a theoretical approach to realize arbitrary entangled state transfer through a qubit …

Optoelectromechanical quantum interfaces can be utilized to connect systems with
distinctively different frequencies in hybrid quantum networks. Here we present a scheme of …