Superconducting circuits based on Josephson junctions are regarded as one of the most
promising technologies for the implementation of scalable quantum computers. This review …

Multimode cavity quantum electrodynamics—where a two-level system interacts
simultaneously with many cavity modes—provides a versatile framework for quantum …

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 …

Superconducting microwave cavities featuring ultrahigh Q-factors, which measure the
efficiency of energy storage in relation to energy loss in a system, are revolutionizing …

Superconducting metamaterial transmission lines implemented with lumped circuit elements
can exhibit left-handed dispersion, where the group and phase velocity have opposite sign …

Superconducting microwave cavities with ultra-high Q-factors are revolutionizing the field of
quantum computing, offering long coherence times exceeding 1 ms, which is critical for …

To go beyond quantum optics in free-space setups, atom-light interfaces with structured
photonic environments are often employed to realize unconventional quantum …

To satisfy the marking demand for microwave absorbing devices, we design an ultra-
broadband nearly perfect absorber. The proposed absorber demonstrates absorption band …

Giant atoms, where the dipole approximation ceases to be valid, allow us to observe
unconventional quantum optical phenomena arising from interference and time-delay …

Instantons, spacetime-localized quantum field tunneling events, are ubiquitous in correlated
condensed matter and high-energy systems. However, their direct observation through …