科研之友
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摘要
We show that light-pulse atom interferometry with atomic point sources and spatially resolved detection enables multiaxis (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 wave packet separation and a duration of 2T = 2.3 s. The inferred acceleration sensitivity of each shot is 6.7 X 10(-12)g, which improves on previous limits by more than 2 orders of magnitude. We also measure Earth's rotation rate with a precision of 200 nrad/s.
- 出版日期2013-8-19
