Exponential Improvement in Photon Storage Fidelities Using Subradiance and “Selective Radiance” in Atomic Arrays
Light interacting with an ensemble of atoms can be used in quantum information processing, but the efficiency of performing any given task is limited by spontaneous emission of photons into channels that are not usable. A new analysis shows how interference among light emitted by nearby atoms can dramatically improve this efficiency and provide a much more powerful platform.