Multi-axis inertial sensing with long-time point source atom interferometry
| Autor: | Susannah Dickerson, David S. Johnson, Alex Sugarbaker, Jason M. Hogan, Mark A. Kasevich |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Physics
Atom interferometer Quantum Physics Inertial frame of reference Atomic Physics (physics.atom-ph) business.industry Wave packet FOS: Physical sciences General Physics and Astronomy Acceleration (differential geometry) Rotation Measure (mathematics) Physics - Atomic Physics Optics Orders of magnitude (time) Sensitivity (control systems) Atomic physics Quantum Physics (quant-ph) business |
| Popis: | 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. 5 pages, 5 figures |
| Databáze: | OpenAIRE |
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