activity
20062023
most citedGeodesy and metrology with a transportable optical clock

495 citations · 1.5k across the 16 of their papers we have counts for

collaborators

16 papers

physics.atom-ph2023

Analysis of atomic-clock data to constrain variations of fundamental constants

Nathaniel Sherrill, Adam O. Parsons, Charles F. A. Baynham +13

We present a new framework to study the time variation of fundamental constants in a model-independent way. Model independence implies more free parameters than assumed in previous…

hep-ph2021★ 65 cited

Measuring the stability of fundamental constants with a network of clocks

G. Barontini, L. Blackburn, V. Boyer +41

The detection of variations of fundamental constants of the Standard Model would provide us with compelling evidence of new physics, and could lift the veil on the nature of dark m…

hep-ph2021★ 3 cited

QSNET, a network of clocks for measuring the stability of fundamental constants

G. Barontini, V. Boyer, X. Calmet +19

The QSNET consortium is building a UK network of next-generation atomic and molecular clocks that will achieve unprecedented sensitivity in testing variations of the fine structure…

physics.atom-ph2020★ 48 cited

A strontium optical lattice clock with uncertainty and measurement of its absolute frequency

Richard Hobson, William Bowden, Alissa Silva +5

We present a measurement of the absolute frequency of the 5s S to 5s5p P transition in Sr, which is a secondary representation of the SI second. We descr…

physics.ins-det2019★ 39 cited

Direct comparisons of European primary and secondary frequency standards via satellite techniques

F. Riedel, A. Al-Masoudi, E. Benkler +46

We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-bas…

physics.atom-ph2019

A pyramid MOT with integrated optical cavities as a cold atom platform for an optical lattice clock

William Bowden, Richard Hobson, Ian R. Hill +6

We realize a two-stage, hexagonal pyramid magneto-optical trap (MOT) with strontium, and demonstrate loading of cold atoms into cavity-enhanced 1D and 2D optical lattice traps, all…