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Spin-1/2 optical lattice clock.
Lemke, N D; Ludlow, A D; Barber, Z W; Fortier, T M; Diddams, S A; Jiang, Y; Jefferts, S R; Heavner, T P; Parker, T E; Oates, C W.
Afiliação
  • Lemke ND; National Institute of Standards and Technology, Boulder, Colorado 80305, USA.
Phys Rev Lett ; 103(6): 063001, 2009 Aug 07.
Article em En | MEDLINE | ID: mdl-19792559
ABSTRACT
We experimentally investigate an optical clock based on ;{171}Yb (I = 1/2) atoms confined in an optical lattice. We have evaluated all known frequency shifts to the clock transition, including a density-dependent collision shift, with a fractional uncertainty of 3.4 x 10;{-16}, limited principally by uncertainty in the blackbody radiation Stark shift. We measured the absolute clock transition frequency relative to the NIST-F1 Cs fountain clock and find the frequency to be 518 295 836 590 865.2(0.7) Hz.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Estados Unidos
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Estados Unidos