Quantum diamond sensors

The nitrogen–vacancy (NV) quantum defect in diamond is a leading modality for magnetic, electrical, and temperature sensing at short length scales (nanometers to millimeters) under ambient conditions. This technology has wide-ranging application across the physical and life sciences -- from NMR spectroscopy at the scale of individual cells to improved biomedical diagnostics to probing magnetic materials. I will provide an overview of quantum diamond sensors, their diverse applications, and ongoing commercialization.