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This breakthrough demonstrates the first self-stabilizing prototype of a nuclear clock using thorium-229 nuclei, achieving over 24 hours of autonomous operation without external intervention. By leveraging unique energy states in thorium rather than traditional cesium or rubidium standards, this technology paves the way for timekeeping precision that could redefine fundamental physics measurements and global synchronization protocols.
Nuclear clock at TU Wien stabilizes itself for over a day
TU Wien physicists debuted the world’s first self-stabilizing prototype, a new timekeeping technology.
© Matthias Heisler, TU Wien · tuwien.at Researchers at TU Wien have built the world’s first prototype nuclear clock, a device that relies on a thorium crystal within a vacuum chamber to measure time rather than the cesium or rubidium used in conventional atomic clocks. The team reports demonstrating self-stabilization of the system for over 24 hours without intervention, a key step toward achieving precision in timekeeping. This technology promises to significantly surpass existing atomic clocks and enable measurements of physical quantities with previously unattainable precision. The prototype nuclear clock at the Institute…
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