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arXiv · 1305.1700

Multi-axis inertial sensing with long-time point source atom interferometry

Susannah M. Dickerson·Jason M. Hogan·Alex Sugarbaker·David M. S. Johnson·Mark A. Kasevich
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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.

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Susannah M. Dickerson, Jason M. Hogan, Alex Sugarbaker, David M. S. Johnson, Mark A. Kasevich. 2013-05-08. Multi-axis inertial sensing with long-time point source atom interferometry. https://doi.org/10.1103/physrevlett.111.083001

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