Topical issue: Metrology and optical frequency combs

The European Physical Journal D

, 48:11

First online:

An optical lattice clock with spin-polarized 87Sr atoms

  • X. BaillardAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire Email author 
  • , M. FouchéAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'ObservatoireLaboratoire Collisions Agrégats Réactivité, UMR 5589 CNRS, Université Paul Sabatier Toulouse 3
  • , R. Le TargatAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
  • , P. G. WestergaardAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
  • , A. LecallierAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
  • , F. ChapeletAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
  • , M. AbgrallAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
  • , G. D. RoveraAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
  • , P. LaurentAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
    • , P. RosenbuschAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
    • , S. BizeAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
    • , G. SantarelliAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
    • , A. ClaironAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
    • , P. LemondeAffiliated withLNE-SYRTE, Observatoire de Paris, 61 avenue de l'Observatoire
    • , G. GroscheAffiliated withPhysikalisch-Technische Bundesanstalt, Bundesallee 100
    • , B. LipphardtAffiliated withPhysikalisch-Technische Bundesanstalt, Bundesallee 100
    • , H. SchnatzAffiliated withPhysikalisch-Technische Bundesanstalt, Bundesallee 100

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Abstract.

We present a new evaluation of an 87Sr optical lattice clock using spin polarized atoms. The frequency of the 1S03P0 clock transition is found to be 429 228 004 229 873.6 Hz with a fractional uncertainty 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 [Phys. Rev. Lett. 98, 083002 (2007)].

PACS.

06.30.Ft Time and frequency 37.10.Jk Atoms in optical lattices 32.60.+i Zeeman and Stark effects 32.30.Jc Visible and ultraviolet spectra