The major task of detecting axions or axion-like particles has two challenges. On the one
hand, the ultimate sensitivity is required, down to the energy of a single microwave photon of …

We experimentally demonstrate the steady-state generation of propagating Wigner-negative
states from a continuously driven superconducting qubit. We reconstruct the Wigner function …

Precise reconstruction of unknown quantum states from measurement data, a process
commonly called quantum state tomography, is a crucial component in the development of …

We present a set of robust and high-fidelity pulses that realize paradigmatic operations such
as the transfer of the ground state population into the excited state and arbitrary X/Y rotations …

In this manuscript, the plasmonic equi-triangular slot loaded bowtie aluminium dipole nano-
antenna is investigated on a glass substrate for quantum optical wireless communication …

Loading quantum information deterministically onto a quantum node is an important step
toward a quantum network. Here, we demonstrate that coherent-state microwave photons …

An electromagnetic wave propagating through a waveguide with a strongly coupled two-
level superconducting artificial atom exhibits an evolving superposition with the atom. The …

Recent experimental studies have shown that the relaxation time T 1 and the dephasing
time T 2 of superconducting qubits fluctuate considerably over time. Time-varying quantum …

We successfully demonstrate low-frequency noise suppression in the resonant-frequency
fluctuations of a cavity-embedded Cooper-pair transistor (cCPT) driven at single-photon …

A cascade of two-level superconducting artificial atoms--a source and a probe--strongly
coupled to a semi-infinite waveguide is a promising tool for observing nontrivial phenomena …