International timekeepers agree to replace leap seconds with leap hour to prevent computer system disruptions

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#timekeeping #atomicclocks #leapsecond

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Phase II SrROCK programme develops compact strontium optical-clock technology targeting data centre and satellite timing, advancing UK sovereign supply and distributed quantum computing infrastructure.

#QuantumHardware #AtomicClocks #News

In exciting news for keeping time, which is way more important than most realize, two thorium-based nuclear clocks begin ticking in Vienna and Beijing. The devices are “the next generation of #AtomicClocks.”

Vietnamese NASA Scientist Advances Miniaturization of Atomic Clocks for Deep Space Missions

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#atomicclocks #spaceexploration #quantumsensors

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Researchers developed spin grid states that achieve 24x precision improvement in atomic clocks with 51+ atoms, surpassing GHZ configurations when spontaneous emission limits measurement time—a practical advance for resilient quantum sensing.

#QuantumMetrology #AtomicClocks #QuantumSensing

Spin grid states outperform GHZ and squeezed states for quantum metrology in noisy atomic clocks. Generated via two OAT operations, these entangled states achieve near-optimal precision for large ensembles despite spontaneous emission.

#QuantumMetrology #AtomicClocks #Research