Test of general relativity by a pair of transportable optical lattice clocks

Volume: 14, Issue: 7, Pages: 411 - 415
Published: Apr 6, 2020
Abstract
A clock at a higher altitude ticks faster than one at a lower altitude, in accordance with Einstein’s theory of general relativity. The outstanding stability and accuracy of optical clocks, at 10−18 levels1–5, allows height differences6 of a centimetre to be measured. However, such state-of-the-art clocks have been demonstrated only in well-conditioned laboratories. Here, we demonstrate an 18-digit-precision frequency comparison in a...
Paper Details
Title
Test of general relativity by a pair of transportable optical lattice clocks
Published Date
Apr 6, 2020
Volume
14
Issue
7
Pages
411 - 415
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