ATOMIC PHYSICS

An optical clock to go

Bringing next-generation atomic clocks out of the lab is not an easy task, but doing so will unlock many new possibilities. As a crucial first step, a portable atomic clock has now been deployed for relativistic geodesy measurements in the Alps.

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Correspondence to Andrew D. Ludlow.

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Ludlow, A.D. An optical clock to go. Nature Phys 14, 431–432 (2018). https://doi.org/10.1038/s41567-018-0047-6

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