Enhancing the quantum sensing capabilities of diamond

Researchers have discovered that dense ensembles of quantum spins can be created in diamond with high resolution using an electron microscopes, paving the way for enhanced sensors and resources for quantum technologies. This work demonstrates an improvement in the densities of Nitrogen-Vacancy (NV) centers in a variety of diamond types, foreshadowing future improvements in the sensitivity of diamond magnetic measurements, as well as promising directions in the study of solid state physics and quantum information theory.