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Improved Absolute Frequency Measurement of the 171Yb Optical Lattice Clock towards the Redefinition of the Second

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Abstract

We demonstrate an improved absolute frequency measurement of the 1S0-3P0 clock transition at 578 nm in 171Yb atoms in a one-dimensional optical lattice. The absolute frequency is determined as 518 295 836 590 863.1(2.0) Hz relative to the SI second.

© 2013 Optical Society of America

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