In a context of global change and increasing anthropic pressure on the environment,
monitoring the Earth system and its evolution has become one of the key missions of …

Studying, understanding and modelling global change require geodetic reference frames
with an order of accuracy higher than the magnitude of the effects to be actually studied and …

Gravimetry is a well-established technique for the determination of sub-surface mass
distribution needed in several fields of geoscience, and various types of gravimeters have …

The research on cold-atom interferometers gathers a large community of about 50 groups
worldwide both in the academic and now in the industrial sectors. The interest in this sub …

The redefinition of the SI unit of mass in terms of a fixed value of the Planck constant has
been made possible by the Kibble balance, previously known as the watt balance. Once the …

We report the direct comparison between the stabilities of two mobile absolute gravimeters
of different technology: the LNE-SYRTE Cold Atom Gravimeter (CAG) and FG5X# 216 of the …

We report on the implementation of ultracold atoms as a source in a state of the art atom
gravimeter. We perform gravity measurements with 10 nm s− 2 statistical uncertainties in a …

This work reviews the topic of rotation sensing with compact cold atom interferometers. A
representative set of compact free-falling cold atom gyroscopes is considered because, in …

A determination of the Planck constant h using the LNE Kibble balance in air was carried out
in the spring of 2017. Substantial improvements since 2014, chiefly related to the mass …

We have measured Planck's constant and have obtained a value of 6.626 070 34 (12)× 10−
34 J s. To our knowledge this measurement of h has the lowest uncertainty reported to date …