Gravity surveys using a mobile atom interferometer

@article{Wu2019GravitySU,
  title={Gravity surveys using a mobile atom interferometer},
  author={Xuejian Wu and Zachary Pagel and Bola S Malek and Timothy Hung Nguyen and Fei Zi and Daniel S. Scheirer and Holger M{\"u}ller},
  journal={Science Advances},
  year={2019},
  volume={5}
}
A mobile atomic gravimeter based on atom interferometry has been driven for surveying gravity in the hills. Mobile gravimetry is important in metrology, navigation, geodesy, and geophysics. Atomic gravimeters could be among the most accurate mobile gravimeters but are currently constrained by being complex and fragile. Here, we demonstrate a mobile atomic gravimeter, measuring tidal gravity variations in the laboratory and surveying gravity in the field. The tidal gravity measurements achieve a… 

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References

SHOWING 1-10 OF 48 REFERENCES

Absolute marine gravimetry with matter-wave interferometry

The authors demonstrate the ship-borne absolute gravity acceleration measurements using an atom interferometer, which opens the way to the next generation of inertial sensors (accelerometer, gyroscope) based on atoms interferometry which should provide high-precision absolute measurements from a moving platform.

Mobile quantum gravity sensor with unprecedented stability

Changes of surface gravity on Earth are of great interest in geodesy, earth sciences and natural resource exploration. They are indicative of Earth system's mass redistributions and vertical surface

Measurement of the Earth tides with a MEMS gravimeter

A microelectromechanical system (MEMS) device with a sensitivity of 40 microgal per hertz1/2 only a few cubic centimetres in size is presented, used to measure the Earth tides, revealing the long-term stability of the instrument compared to any other MEMS device.

Detecting inertial effects with airborne matter-wave interferometry

The first operation of an airborne matter-wave accelerometer set up aboard a 0g plane and operating during the standard gravity and microgravity phases of the flight is reported.

Multiaxis atom interferometry with a single-diode laser and a pyramidal magneto-optical trap

Atom interferometry has become one of the most powerful technologies for precision measurements. To develop simple, precise, and versatile atom interferometers for inertial sensing, we demonstrate an

Compact cold atom gravimeter for field applications

We present a cold atom gravimeter dedicated to field applications. Despite the compactness of our gravimeter, we obtain performances (sensitivity 42 μGal/Hz1/2, accuracy 25 μGal) close to the best

Geophysics From Terrestrial Time‐Variable Gravity Measurements

In a context of global change and increasing anthropic pressure on the environment, monitoring the Earth system and its evolution has become one of the key missions of geosciences. Geodesy is the

Interleaved atom interferometry for high-sensitivity inertial measurements

This work reports 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, and proves interleaving as a key concept for future atom-interferometry sensors probing time-varying signals.

Stability comparison of two absolute gravimeters: optical versus atomic interferometers

We report the direct comparison between the stabilities of two mobile absolute gravimeters of different technology: the LNE-SYRTE Cold Atom Gravimeter (CAG) and FG5X#216 of the Université du

Participation in the absolute gravity comparison with a compact cold atom gravimeter

The first Asia-Pacific Comparison of Absolute Gravimeters (APMP.M.G-K1) was organized by the National Institute of Metrology (NIM) of China from December 21, 2015 to March 25, 2016 in Changping,