2D Interaction Unveils Surprising Quantum Radiation Properties

Researchers from Technion have presented the first-ever experimental observation of Cherenkov radiation confined within a two-dimensional space, revealing the quantum properties of the radiation. The low dimensionality of the effect permitted a glimpse into the quantum nature of the process of radiation emission from free electrons, and the entanglement of the electrons with the light waves they emit. The study links this phenomenon to potential future applications in photonic quantum computing and free-electron quantum light sources.