Physics – Atomic Physics
Scientific paper
2007-09-29
Physics
Atomic Physics
Scientific paper
10.1140/epjd/e2007-00330-3
We present a new evaluation of an 87Sr optical lattice clock using spin polarized atoms. The frequency of the 1S0-3P0 clock transition is found to be 429 228 004 229 873.6 Hz with a fractional accuracy of 2.6 10^{-15}, a value that is comparable to the frequency difference between the various primary standards throughout the world. This measurement is in excellent agreement with a previous one of similar accuracy.
Abgrall Michel
Baillard Xavier
Bize Sébastien
Chapelet Fréderic
Clairon André
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