We demonstrate a superconducting artificial atom with strong unidirectional coupling to a
microwave photonic waveguide. Our artificial atom is realized by coupling a transmon qubit …

In this Letter, we show how to efficiently generate entanglement between two artificial giant
atoms with photon-mediated interactions in a waveguide. Taking advantage of the …

Quantum optics with giant atoms has provided a new paradigm to study photon scatterings.
In this work, we investigate the nontrivial single-photon scattering properties of giant atoms …

Giant atoms that interact with real-space waveguides at multiple spatial points have attracted
extensive attention due to their unique interference effects. Here we propose a feasible …

In quantum optics, it is common to assume that atoms are pointlike objects compared to the
wavelength of the electromagnetic field they interact with. However, this dipole …

We study chiral and nonreciprocal single-photon scattering in a chiral-giant-molecule
waveguide-QED system. Here, the giant molecule consists of two coupled giant atoms …

We study the disentanglement dynamics of two giant atoms coupled to a common one-
dimensional waveguide. We focus on the non-Markovian retarded effect in the …

The many-body decay of extended collections of two-level systems remains an open
problem. Here, we investigate whether an array of emitters coupled to a one-dimensional …

Giant atoms, quantum emitters that couple to light at multiple discrete points, are emerging
as a new paradigm in quantum optics due to their many promising properties, such as …

Giant atoms provide a promising platform for engineering decoherence-free interactions,
which is a major task in modern quantum technologies. Here we study systematically how to …