Enhancing the sensitivity of atom-interferometric inertial sensors using robust control.

ABSTRACT: Atom-interferometric quantum sensors could revolutionize navigation, civil engineering, and Earth observation. However, operation in real-world environments is challenging due to external interference, platform noise, and constraints on size, weight, and power. Here we experimentally demonstrate that tailored light pulses designed using robust control techniques mitigate significant error sources in an atom-interferometric accelerometer. To mimic the effect of unpredictable lateral platform motion, we apply laser-intensity noise that varies up to 20% from pulse-to-pulse. Our robust control solution maintains performant sensing, while the utility of conventional pulses collapses. By measuring local gravity, we show that our robust pulses preserve interferometer scale factor and improve meas

SUBMITTER: Saywell JC 

PROVIDER: S-EPMC10665367 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature