Accurate optical lattice clock with 87Sr atoms.

@article{Targat2006AccurateOL,
  title={Accurate optical lattice clock with 87Sr atoms.},
  author={Rodolphe Le Targat and Xavier Baillard and Mathilde Fouch{\'e} and Anders Brusch and Olivier Tcherbakoff and Giovanni Daniele Rovera and Pierre Lemonde},
  journal={Physical review letters},
  year={2006},
  volume={97 13},
  pages={130801}
}
We report a frequency measurement of the 1S0-3P0 transition of 87Sr atoms in an optical lattice clock. The frequency is determined to be 429 228 004 229 879(5) Hz with a fractional uncertainty that is comparable to state-of-the-art optical clocks with neutral atoms in free fall. The two previous measurements of this transition were found to disagree by about 2 x 10(-13), i.e., almost 4 times the combined error bar and 4 to 5 orders of magnitude larger than the claimed ultimate accuracy of this… CONTINUE READING
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