Cavity quantum electrodynamics (CQED)

Cavity Quantum Electrodynamics (CQED) studies how individual atoms and light interact inside a tiny, reflective chamber called a cavity. This environment enhances and controls the exchange of energy between atoms and photons (light particles), revealing quantum effects like discrete energy exchanges and entanglement. CQED enables precise manipulation of light-matter interactions, vital for developing quantum technologies such as ultra-secure communication, quantum computing, and advanced sensors. Essentially, it investigates how quantized particles of light and matter influence each other in a confined space, uncovering fundamental quantum phenomena and paving the way for new technological possibilities.