2006/11/07 by Martin M. Boyd, Andrew D. Ludlow, Sebastian Blatt +5 · 2 citations
Medicine · Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Subatomic Physics Research #Cardiovascular Syncope and Autonomic Disorders #physics.atom-ph #physics.gen-ph
paper · pdf · doi:10.1103/physrevlett.98.083002
published as Phys. Rev. Lett. 98, 083002 (2007) · 4 pages, 4 figures, 2 tables
arxiv created 2006/11/07 · openalex publication_date 2007/02/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Aided by ultrahigh resolution spectroscopy, the overall systematic uncertainty of the 1S0\mathrm\text\ensuremath-3P0 clock resonance for lattice-confined 87Sr has been characterized to 9\ifmmode×\else\texttimes\fi10^\ensuremath-16. This uncertainty is at a level similar to the Cs-fountain primary standard, while the potential stability for the lattice clocks exceeds that of Cs. The absolute frequency of the clock transition has been measured to be 429 228 004 229 874.0(1.1) Hz, where the 2.5\ifmmode×\else\texttimes\fi10^\ensuremath-15 fractional uncertainty represents the most accurate measurement of a neutral-atom-based optical transition frequency to date.