Quantum metrology with nonclassical states of atomic ensembles

L Pezze, A Smerzi, MK Oberthaler, R Schmied… - Reviews of Modern …, 2018 - APS
Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

Optical atomic clocks

AD Ludlow, MM Boyd, J Ye, E Peik, PO Schmidt - Reviews of Modern Physics, 2015 - APS
Optical atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Demonstration of 4.8 × 10−17 stability at 1 s for two independent optical clocks

E Oelker, RB Hutson, CJ Kennedy, L Sonderhouse… - Nature …, 2019 - nature.com
Optical atomic clocks require local oscillators with exceptional optical coherence owing to
the challenge of performing spectroscopy on their ultranarrow-linewidth clock transitions …

Differential clock comparisons with a multiplexed optical lattice clock

X Zheng, J Dolde, V Lochab, BN Merriman, H Li… - Nature, 2022 - nature.com
Rapid progress in optical atomic clock performance has advanced the frontiers of
timekeeping, metrology and quantum science,–. Despite considerable efforts, the …

Entanglement on an optical atomic-clock transition

E Pedrozo-Peñafiel, S Colombo, C Shu, AF Adiyatullin… - Nature, 2020 - nature.com
State-of-the-art atomic clocks are based on the precise detection of the energy difference
between two atomic levels, which is measured in terms of the quantum phase accumulated …

A Fermi-degenerate three-dimensional optical lattice clock

SL Campbell, RB Hutson, GE Marti, A Goban… - Science, 2017 - science.org
Strontium optical lattice clocks have the potential to simultaneously interrogate millions of
atoms with a high spectroscopic quality factor of 4× 1017. Previously, atomic interactions …

[HTML][HTML] Systematic evaluation of an atomic clock at 2× 10− 18 total uncertainty

TL Nicholson, SL Campbell, RB Hutson… - Nature …, 2015 - nature.com
The pursuit of better atomic clocks has advanced many research areas, providing better
quantum state control, new insights in quantum science, tighter limits on fundamental …

An optical lattice clock with accuracy and stability at the 10−18 level

BJ Bloom, TL Nicholson, JR Williams, SL Campbell… - Nature, 2014 - nature.com
Progress in atomic, optical and quantum science, has led to rapid improvements in atomic
clocks. At the same time, atomic clock research has helped to advance the frontiers of …

A quantum network of clocks

P Komar, EM Kessler, M Bishof, L Jiang, AS Sørensen… - Nature Physics, 2014 - nature.com
The development of precise atomic clocks plays an increasingly important role in modern
society. Shared timing information constitutes a key resource for navigation with a direct …

Cryogenic optical lattice clocks

I Ushijima, M Takamoto, M Das, T Ohkubo, H Katori - Nature Photonics, 2015 - nature.com
The accuracy of atomic clocks relies on the superb reproducibility of atomic spectroscopy,
which is accomplished by careful control and the elimination of environmental perturbations …