Composite-fringe atom interferometry for high dynamic-range sensing
| Autor: | Ofer Firstenberg, Nir Davidson, Chen Avinadav, Dimitry Yankelev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Atom interferometer Quantum Physics Inertial frame of reference Atomic Physics (physics.atom-ph) business.industry Dynamic range Bandwidth (signal processing) Composite number FOS: Physical sciences General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Physics - Atomic Physics Gravitation Optics 0103 physical sciences Astronomical interferometer Quantum Physics (quant-ph) 010306 general physics 0210 nano-technology business High dynamic range |
| Popis: | Atom interferometers offer excellent sensitivity to gravitational and inertial signals but have limited dynamic range. We introduce a scheme that improves on this trade-off by a factor of 50 using composite fringes, obtained from sets of measurements with slightly varying interrogation times. We analyze analytically the performance gain in this approach and the trade-offs it entails between sensitivity, dynamic range, and temporal bandwidth, and we experimentally validate the analysis over a wide range of parameters. By combining composite-fringe measurements with a particle-filter estimation protocol, we demonstrate continuous tracking of a rapidly varying signal over a span two orders of magnitude larger than the dynamic range of a traditional atom interferometer. C.A. and D.Y. contributed equally. The text consists of 6+3 pages, 5 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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