Quantum imaging: exploiting the transverse structure of individual photons (joint colloquium with the Department of Physics and Astronomy) - Robert Boyd

Although a photon is one unit of excitation of a mode of the electromagnetic field, the modes of the electromagnetic field are countably infinite so the amount of information that can be impressed onto an individual photon is unlimited. We describe how this large information content can be exploited for applications to quantum information. We are working on quantum key distribution at a high transmission rate by exploiting the transverse degree of freedom of the photon and exploring how image formation using quantum states of light allows dramatic new possibilities for image science.