{sup 87}Sr Lattice Clock with Inaccuracy below 10{sup -15}

Journal Article · Fri Feb 23 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.083002· OSTI ID:20957679

Boyd, Martin M; Ludlow, Andrew D; Blatt, Sebastian; Foreman, Seth M; Ido, Tetsuya; Zelevinsky, Tanya; Jun, Ye ^[1]

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1. JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440 (United States)

Aided by ultrahigh resolution spectroscopy, the overall systematic uncertainty of the {sup 1}S{sub 0}-{sup 3}P{sub 0} clock resonance for lattice-confined {sup 87}Sr has been characterized to 9x10{sup -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 2.5x10{sup -15} fractional uncertainty represents the most accurate measurement of a neutral-atom-based optical transition frequency to date.

• OSTI ID: 20957679
• Journal Information: Physical Review Letters, Vol. 98, Issue 8; Other Information: DOI: 10.1103/PhysRevLett.98.083002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMIC CLOCKS
RESOLUTION
RESONANCE
SPECTROSCOPY
STRONTIUM 87