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Dual matter-wave inertial sensors in weightlessness.


ABSTRACT: Quantum technology based on cold-atom interferometers is showing great promise for fields such as inertial sensing and fundamental physics. However, the finite free-fall time of the atoms limits the precision achievable on Earth, while in space interrogation times of many seconds will lead to unprecedented sensitivity. Here we realize simultaneous 87Rb-39K interferometers capable of operating in the weightless environment produced during parabolic flight. Large vibration levels (10-2?g?Hz-1/2), variations in acceleration (0-1.8?g) and rotation rates (5°?s-1) onboard the aircraft present significant challenges. We demonstrate the capability of our correlated quantum system by measuring the Eötvös parameter with systematic-limited uncertainties of 1.1 × 10-3 and 3.0 × 10-4 during standard- and microgravity, respectively. This constitutes a fundamental test of the equivalence principle using quantum sensors in a free-falling vehicle. Our results are applicable to inertial navigation, and can be extended to the trajectory of a satellite for future space missions.

SUBMITTER: Barrett B 

PROVIDER: S-EPMC5159825 | biostudies-other | 2016 Dec

REPOSITORIES: biostudies-other

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Dual matter-wave inertial sensors in weightlessness.

Barrett Brynle B   Antoni-Micollier Laura L   Chichet Laure L   Battelier Baptiste B   Lévèque Thomas T   Landragin Arnaud A   Bouyer Philippe P  

Nature communications 20161212


Quantum technology based on cold-atom interferometers is showing great promise for fields such as inertial sensing and fundamental physics. However, the finite free-fall time of the atoms limits the precision achievable on Earth, while in space interrogation times of many seconds will lead to unprecedented sensitivity. Here we realize simultaneous <sup>87</sup>Rb-<sup>39</sup>K interferometers capable of operating in the weightless environment produced during parabolic flight. Large vibration le  ...[more]

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