An optical lattice clock with spin-polarized 87Sr atoms
- Baillard, Xavier
- Fouché, Mathilde
- Le Targat, Rodolphe
- Westergaard, Philip G.
- Lecallier, Arnaud
- Chapelet, Fréderic
- Abgrall, Michel
- Rovera, Daniele
- Laurent, Philippe
- Rosenbusch, Peter
- Bize, Sébastien
- Santarelli, Giorgio
- Clairon, André
- Lemonde, Pierre
- Grosche, Gesine
- Lipphardt, B.
- Schnatz, Harald
DOIAbstract
International audienceWe present a new evaluation of an <SUP>87</SUP>Sr optical lattice clock using spin polarized atoms. The frequency of the <SUP>1</SUP>S<SUB>0</SUB>--><SUP>3</SUP>P<SUB>0</SUB> clock transition is found to be 429 228 004 229 873.6 Hz with a fractional uncertainty of 2.6×10<SUP>-15</SUP>, 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 [Phys. Rev. Lett. 98, 083002 (2007)]
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