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Nuclear Clocks Achieve New Timekeeping Era
7 Oct
Summary
- Two independent teams developed the first operating nuclear clocks.
- Nuclear clocks use lasers to interact with atom nuclei for timekeeping.
- This advancement promises wider applications and fundamental physics insights.
Two independent scientific teams, one in Vienna and another in Beijing, have successfully developed the world's first operating nuclear clocks. This marks a significant leap forward in timekeeping technology. The new devices represent a next generation beyond conventional atomic clocks, which have been the standard since 1949.
Unlike atomic clocks that measure electron transitions, nuclear clocks measure time by observing interactions between lasers and the nucleus of an atom, specifically thorium-229. This method is theorized to offer higher accuracy due to the smaller scale of the atomic nucleus. Researchers are still refining the technology, but collaborations could enhance performance.
These nuclear clocks hold promise for applications in satellite navigation, data synchronization, and surveying. They also offer a novel tool for investigating fundamental physics, with one team already using their device for a dark matter detection experiment. The potential for greater accuracy and reduced size could revolutionize numerous fields.
