Optical lattice clock with spin-polarized 87Sr atoms

We report on the evaluation of an optical lattice clock using fermionic 87Sr. The measured frequency of the 1S0 → 3P0 clock transition is 429 228 004 229 873.7Hz with a fractional acuracy of 2.6 × 10-15. This evaluation is performed on mF = ±9/2 spin-polarized atoms. This technique also enables to evaluate the value of the differential Landé factor, 110.6Hz/G. by probing symmetrical σ-transitions.

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