I.C.E.: a Transportable Atomic Inertial Sensor for Test in Microgravity
摘要
We present our the construction of an atom interferometer for inertial sensing in microgravity, as part of the I.C.E. (\textit{Interf\'{e}rom\'{e}trie Coh\'{e}rente pour l'Espace}) collaboration. On-board laser systems have been developed based on fibre-optic components, which are insensitive to mechanical vibrations and acoustic noise, have sub-MHz linewidth, and remain frequency stabilised for weeks at a time. A compact, transportable vacuum system has been built, and used for laser cooling and magneto-optical trapping. We will use a mixture of quantum degenerate gases, bosonic Rb and fermionic K, in order to find the optimal conditions for precision and sensitivity of inertial measurements. Microgravity will be realised in parabolic flights lasting up to 20s in an Airbus. We show that the factors limiting the sensitivity of a long-interrogation-time atomic inertial sensor are the phase noise in reference frequency generation for Raman-pulse atomic beam-splitters and acceleration fluctuations during free fall.
引用
@article{arxiv.cond-mat/0605057,
title = {I.C.E.: a Transportable Atomic Inertial Sensor for Test in Microgravity},
author = {Robert A. Nyman and Gael Varoquaux and Fabien Lienhart and Damien Chambon and Salah Boussen and Jean-François Clément and T. Muller and Giorgio Santarelli and Frank Pereira Dos Santos and André Clairon and Alexandre Bresson and Arnaud Landragin and Philippe Bouyer},
journal= {arXiv preprint arXiv:cond-mat/0605057},
year = {2016}
}