
Cavity quantum electrodynamics
Cavity quantum electrodynamics (cavity QED) explores how light and matter interact within a tiny, reflective space, or cavity. In this setting, atoms or particles can absorb and emit light, leading to unique quantum effects. The confined environment enhances these interactions, allowing scientists to study fundamental principles of physics, like quantum entanglement and superposition. Applications include developing advanced quantum technologies, such as quantum computers and precise sensors, by harnessing the unique behaviors observed when light and matter are coupled closely in these cavities.