GoKawiilOptical clocks across four countries synchronized in landmark comparison
Scientists linked ultra-precise optical atomic clocks located in four different nations and successfully compared their timekeeping with extremely high accuracy. The experiment demonstrated that these clocks, which are far more precise than the cesium clocks defining current international time standards, can be reliably synced across long distances.
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This achievement moves the world closer to redefining the second using optical clocks, which could improve global timekeeping, satellite navigation, and tests of fundamental physics. Reliable international synchronization is a critical prerequisite before any such standard can be adopted worldwide.
- Optical clocks in four nations were compared with unprecedented precision.
- The result supports future redefinition of the second based on optical clocks.
- Improved global timekeeping could benefit navigation systems and fundamental physics research.
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Published there as: “Super-precise optical clocks in four nations tick in harmony”
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