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Metrology

Metrology

Free-space laser link beats the stability of optical clocks

12 Apr 2021
Illustration of laser light
Laser light: free-space transmission of optical clock signals around the globe could soon be possible. (Courtesy: iStock/Terraxplorer)
Physicists in Australia have demonstrated how to create an exceptionally stable laser link to send f

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Edwin Cartlidge is a science writer based in Rome
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