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Displaying 1026 - 1050 of 4556

Distributing Time and Frequency Information

December 15, 2020
Author(s)
Judah Levine
This chapter discusses the statistics that are used to characterize the performance of clocks, oscillators, and the networks that are used to calibrate and synchronize and calibrate clocks and oscillators by means of data received from global navigation

Wafer-Level Fabrication of Alkali Vapor Cells Using In-Situ Atomic Deposition

December 14, 2020
Author(s)
Douglas Bopp, Vincent N. Maurice, John Kitching
We demonstrate a new technique for filling microfabricated silicon and glass cavities with alkali vapors at the wafer-scale. A single etched silicon wafer contains an array of cavities containing alkali precursor materials offset laterally from the cell

Lifetime-Limited Interrogation of Two Independent 27Al+ Clocks using Correlation Spectroscopy

December 9, 2020
Author(s)
Ethan Clements, May E. Kim, Kaifeng Cui, Aaron M. Hankin, Samuel M. Brewer, Jose Valencia, Jwo-Sy Chen, Chin-wen Chou, David Leibrandt, David Hume
Laser decoherence limits the stability of optical clocks by broadening the observable resonance linewidths and adding noise during the dead time between clock probes. Correlation spectroscopy avoids these limitations by measuring correlated atomic

Symmetry breaking and error correction in open quantum systems

December 8, 2020
Author(s)
Simon K. Lieu, Ron Belyansky, Jeremy T. Young, Rex Lundgren, Victor Albert, Alexey Gorshkov
Symmetry-breaking transitions are a well-understood phenomenon of closed quantum systems in quantum optics, condensed matter, and high energy physics. However, symmetry breaking in open systems is less thoroughly understood, in part due to the richer

Simplify your life

December 2, 2020
Author(s)
Gordon Drake, Eite Tiesinga
Within the Hartree atomic unit systems, the Schrödinger equation becomes parameter free. But there's more to it than making a student's life easier, as Gordon Drake and Eite Tiesinga recount.

Phase-coherent sensing of the center-of-mass motion of trapped-ion crystals

November 9, 2020
Author(s)
Matthew Affolter, Kevin Gilmore, Elena Jordan, John Bollinger
Measurements of the center-of-mass motion of a trapped-ion crystal that are phase- coherent with an external force are reported. These experiments are conducted far from the trap motional frequency on a two-dimensional trapped ion crystal of approximately
Displaying 1026 - 1050 of 4556
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