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New Super-Accurate Optical Atomic Clocks Pass Critical Test

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Researchers have measured an optical clock’s ticking with record-breaking accuracy while also showing that the clock can be operated with unprecedented consistency — achievements representing a significant step toward demonstrating that the new generation of optical atomic clocks are accurate and robust enough to be used to redefine the official length of a second. The official length of a second is currently based on microwave atomic clocks. Andrew Ludlow, one of the research team leaders from the National Institute of Standards and Technology (NIST), said proving the...Read full article

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    Published: April 2019
    Research & TechnologyAmericasNISTOpticsoptical clocksatomic clocksmasersTech Pulse

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