Multi-axis inertial sensing with long-time point source atom interferometry
Atomic Physics
2015-06-15 v1 Quantum Physics
Abstract
We show that light-pulse atom interferometry with atomic point sources and spatially resolved detection enables multi-axis (two rotation, one acceleration) precision inertial sensing at long interrogation times. Using this method, we demonstrate a light-pulse atom interferometer for Rb-87 with 1.4 cm peak wavepacket separation and a duration of 2T = 2.3 seconds. The inferred acceleration sensitivity of each shot is 6.7 * 10^(-12) g, which improves on previous limits by more than two orders of magnitude. We also measure the Earth's rotation rate with a precision of 200 nrad/s.
Cite
@article{arxiv.1305.1700,
title = {Multi-axis inertial sensing with long-time point source atom interferometry},
author = {Susannah M. Dickerson and Jason M. Hogan and Alex Sugarbaker and David M. S. Johnson and Mark A. Kasevich},
journal= {arXiv preprint arXiv:1305.1700},
year = {2015}
}
Comments
5 pages, 5 figures