Atomic clock

A 2026 NIST-led study on acoustic resonators above 100 GHz demonstrates a stacking approach that dramatically improves figure of merit — with implications for any experiment that depends on resonant frequency as a primary observable.

How Earth rotation, solar orbit, reference frames and local environmental changes inform a controlled copper-sphere resonance experiment.

Build an uncertainty budget for synchronized copper-sphere resonance measurements without mistaking calibration artifacts for discoveries.

A system's response when it is driven near a frequency that efficiently excites one of its modes.