In quantum optics, it is common to assume that atoms can be approximated as point-like
compared to the wavelength of the light they interact with. However, recent advances in …

Creating nonclassical states of light from simple quantum systems together with classical
resources is a challenging problem. We show how chiral emitters under a coherent drive …

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

In a numerical study, we investigate the steady-state generation of nonclassical states of
light from a coherently driven two-level atom in a one-dimensional waveguide. Specifically …

The output field from a continuously driven linear parametric oscillator may exhibit
considerably more squeezing than the intracavity field. Inspired by this fact, we explore the …

We review the continuous monitoring of a qubit through its spontaneous emission, at an
introductory level. Contemporary experiments have been able to collect the fluorescence of …

Nondegenerate triple-photon parametric down-conversion (NTPD) is a potential source for
unconditional tripartite non-Gaussian entangled states of continuous variables. Recent …

We study theoretically a laser-driven one-dimensional chain of atoms interfaced with the
guided optical modes of a nanophotonic waveguide. The period of the chain and the …

In this paper, we investigate the dynamics of a single superconducting artificial atom
capacitively coupled to a transmission line with a characteristic impedance comparable to or …

The interaction between superconducting qubits and one-dimensional microwave
transmission lines has been studied experimentally and theoretically in the past two …