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Showing 1–2 of 2 results
Advanced filters: Author: K. Beloy Clear advanced filters

  • Optical clocks with a record low zero-dead-time instability of 6 × 10–17 at 1 second are demonstrated in two cold-ytterbium systems. The two systems are interrogated by a shared optical local oscillator to nearly eliminate the Dick effect.

    • M. Schioppo
    • R. C. Brown
    • A. D. Ludlow
    Research
    Nature Photonics
    Volume: 11, P: 48-52

  • Improved techniques allow the measurement of a frequency difference with an uncertainty of the order of 10–19 between two independent atomic optical lattice clocks, suggesting that they may be able to improve state-of-the-art geodetic techniques.

    • W. F. McGrew
    • X. Zhang
    • A. D. Ludlow
    Research
    Nature
    Volume: 564, P: 87-90