Telecom laser used to study atoms

摘要

New work from French metrologists could allow astronomers to learn much about the physical processes which play out in the depths of space By tracking the motions of cold atom clouds,astronomers can learn much about the physical processes which play out in the depths of space.To make these measurements,researchers currently use instruments named’cold atom incrtial sensors’which,so far,have largely been operated inside the lab The insights gathered by the team-from the French national metrology laboratory for time,frequency and gravimclry-could offer significant improvements in the accuracy of tests of fundamental physics,as well as assessments of the Earth's gravitational field.Studies in the past have made significant strides towards mobile laser systems for cold atom inertial sensing which are more compact,but these have not yet widely proven suitable for measurements in space.