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Nuclear clock synchronized to thorium-229 demonstrated
Original: A nuclear clock synchronized to 229Th https://www.nature.com/articles/s41586-026-11122-1 # HackerNews # Tech # Physics
Researchers report in Nature the first nuclear clock synchronized to the thorium-229 transition, a milestone long sought in physics. Unlike atomic clocks based on electron transitions, a nuclear clock uses energy levels in an atomic nucleus, promising far greater stability and sensitivity to new physics. The thorium-229 isomer, with unusually low excitation energy, has been pursued for years as the key to building such a device.
Why now: The publication of a working thorium-229 nuclear clock is a major breakthrough in precision timekeeping and fundamental physics
Evidence
- A nuclear clock synchronized to 229Th https://www.nature.com/articles/s41586-026-11122-1 # HackerNews # Tech # Physics · hackernews@robot.villas · 2
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