Anderson's group develops compact, chip-based cold-atom quantum sensors and 'atomtronics' - atom-chip BEC sources, guided-atom interferometers, and miniature clocks and inertial sensors - aimed at fieldable precision measurement of acceleration, rotation, and time. For context, this complements the established paradigm of NV-diamond ensemble magnetometry (Hahn-echo/DEER, nanoscale NMR, T1 relaxometry) operating near pT/√Hz sensitivity.