The object
The clock's lattice confines atoms for extremely stable frequency measurements, advancing a physical timing standard with applications in navigation, communications, geodesy and fundamental measurement. The clock is a complete physical reference instrument, not merely a theoretical precision claim.
01
What Hidetoshi did
Invented the optical lattice clock, an atomic timekeeping instrument using atoms trapped in laser light.
02
Why it matters
Optical lattice clocks set new levels of practical timekeeping precision.
03
Living-status check
The laboratory profile records Katori's 2025-present RIKEN leadership role, positive dated living evidence.