Interleaved atom interferometry for high-sensitivity inertial measurements
| Autor: | D, Savoie, M, Altorio, B, Fang, L A, Sidorenkov, R, Geiger, A, Landragin |
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| Rok vydání: | 2018 |
| Předmět: |
Condensed Matter::Quantum Gases
Hardware_MEMORYSTRUCTURES Physics ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Physics::Atomic and Molecular Clusters SciAdv r-articles ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS ComputerApplications_COMPUTERSINOTHERSYSTEMS Physics::Atomic Physics Research Articles Research Article |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| Popis: | Interleaved atom interferometry brings high sensitivity and temporal resolution to cold-atom inertial sensors. Cold-atom inertial sensors target several applications in navigation, geoscience, and tests of fundamental physics. Achieving high sampling rates and high inertial sensitivities, obtained with long interrogation times, represents a challenge for these applications. We report on the interleaved operation of a cold-atom gyroscope, where three atomic clouds are interrogated simultaneously in an atom interferometer featuring a sampling rate of 3.75 Hz and an interrogation time of 801 ms. Interleaving improves the inertial sensitivity by efficiently averaging vibration noise and allows us to perform dynamic rotation measurements in a so far unexplored range. We demonstrate a stability of 3 × 10−10 rad s−1 , which competes with the best stability levels obtained with fiber-optic gyroscopes. Our work validates interleaving as a key concept for future atom-interferometry sensors probing time-varying signals, as in on-board navigation and gravity gradiometry, searches for dark matter, or gravitational wave detection. |
| Databáze: | OpenAIRE |
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