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Search Publications by: David Hume (Fed)

Displaying 26 - 28 of 28

Trapped-ion optical atomic clocks at the quantum limits

January 31, 2017

Author(s)

David R. Leibrandt, Samuel M. Brewer, Jwo-Sy Chen, Aaron M. Hankin, David B. Hume, David J. Wineland, Chin-Wen Chou

Frequency and its inverse, time, are the most accurately measured quantities. Historically, improvements in the accuracy of clocks have enabled advances in navigation, communication, and science. Since 1967, the definition of the SI second has been based

Probing beyond the laser coherence time in optical clock comparisons

March 30, 2016

Author(s)

David B. Hume, David R. Leibrandt

We develop protocols that circumvent the laser noise limit in optical clock comparisons by synchronous probing of two clocks using phase-locked local oscillators. This allows for probe times longer than the laser coherence time, avoids the Dick effect, and