Chiral quantum light, made up of a stream of single, circularly polarized photons, is a crucial enabler of quantum information networks and other exciting emerging applications. Researchers from the Los Alamos National Laboratory and the University of Basel recently presented a new chiral quantum light source that is smaller, easier to produce, and more effective than existing ones.
While chiral light sources typically depend on applying strong external magnetic fields to emit circularly polarized photons, the new source based on a special combination of van der Waals materials did not. Using Scanning NV Magnetometry, researchers …
