Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Mobile quantum gravimeter with a novel pyramidal magneto-optical trap

Xiaojing Wu, Storm Weiner, Zachary Pagel, Bola S. Malek, Holger Müller

Published Jan 1, 2020• 4 citations
Publisher

Abstract

We demonstrate a mobile quantum gravimeter measuring tidal gravity variations in the laboratory and surveying gravity in the field. With simplicity and sensitivity, our instrument paves the way for bringing quantum sensors to field applications.
DOI
10.1364/cleo_at.2020.jw2c.5

Related papers

A Compact Cold Atom Gravimeter Utilizing a Grating Magneto Optical Trap

Sangwon Seo, Jae Hoon Lee, Sang-Bum Lee +6 more

For a wide range of applications quantum gravimeters demands miniaturizing the physics package of a sensor which is, in laboratory environments, as big as a few meters. One approach to this end is adopting unconventional magneto-optical traps (MOT) such as pyramid MOTs [1] and grating MOTs (gMOT) [2]. In particular, grating MOT has opened an interesting opportunity to integrate complex experimental apparatuses into a planar chip [3], [4].

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 26, 2023•0 citations

A field-deployable compact gravimeter based on a grating magneto-optical trap with μGal-level long-term stability

Sangwon Seo, Hyun-Gue Hong, J. Lee +7 more

We present a compact quantum gravimeter based on a grating magneto-optical trap using 87Rb atoms that achieves μGal-level long-term stability without passive vibration isolation. The sensor head integrates magnetic shielding, an ion pump, optical components, and a classical seismometer within a total volume of less than 75L. The gravimeter achieves a sensitivity of 270 μGal/Hz and a stability of 5 μGal at a 1-h average with the long-term gravity record in good agreement with the theoretical tidal model. These results demonstrate a field-deployable platform for portable and chip-integrable quantum gravimetry.

Applied Physics Letters•Feb 9, 2026•1 citation

Trapped atom interferometry for precision gravity surveys and fundamental physics

Matthew Jaffe

Gravity holds great potential as a sensing channel: all matter gravitates, and this effect cannot be shielded. Gravity is so weak however, that extraordinary sensitivity is required to actualize this potential. In this talk, I will discuss a novel atomic gravimeter configuration that (a) has sufficient sensitivity to be a useful gravitational sensor, (b) is small, light and robust enough to operate as a mobile payload, and (c) has excellent spatial resolution for laboratory-scale fundamental physics research.

Optical and Quantum Sensing and Precision Metrology II•Mar 19, 2025•0 citations

Analysis of the Principle and State-of-art Facilities of Mobile Atom Interferometry Gravity

Jinglei Chen

With over 20 years of development, atomic interferometry gravimeters have distinguished themselves in gravity measurements by their high precision and sensitivity. To cater to the demands of field absolute gravity measurements for marine and aerial gravity field measurements, resource exploration, inertial navigation, and positioning, the miniaturization, mobility, and engineering of atomic interferometry gravimeters have become crucial areas of development. On this basis, this article elucidates the principles of atomic interferometry gravimeters, encompassing various laser cooling techniques, magneto-optical traps, and Raman light interference. As a matter of fact, it provides an overview of the principles and achieved precision benchmarks of portable, vehicular, airborne, and shipborne atomic interferometry gravimeters. Additionally, it analyzes the experimental content and results of maritime, terrestrial, and aerial experiments based on portable atomic interferometry gravimeters. The limitations of portable atomic interferometry gravimeters are discussed, along with an exploration of their application prospects. Overall, these results shed light on guiding further exploration of mobile atom interferometry gravity.

Highlights in Science Engineering and Technology•Dec 15, 2023•2 citations

A portable atom gravimeter operating in noisy urban environments

Bin Chen, Jinbao Long, Hong-Tai Xie +4 more

The gravimeter based on atom interferometry has potentially wide applications on building the gravity networks, geophysics as well as gravity assisted navigation. Here, we demonstrate experimentally a portable atom gravimeter operating in the noisy urban environment. Despite the influence of noisy external vibrations, our portable atom gravimeter reaches a sensitivity as good as 65 uGal/\sqrt{Hz} and a resolution of 1.1 uGal after 4000 s integration time, being comparable to state-of-the-art atom gravimeters. Our achievement paves the way for bring the portable atom gravimeter to field applications, such as gravity survey on a moving platform.

arXiv:2203.10696•Mar 21, 2022•0 citations

High Sensitivity Gravity Measurement with Cold Atom Interferometry

Zhong-Kun Hu, Xiao‐Chun Duan, Min-Kang Zhou +1 more

We report the work of exploring atom interferometry techniques to perform precision gravity measurements in our laboratory. The noise suppressions and related modulation experiments for the atom gravimeter will be presented in detail.

•Jan 1, 2014•1 citation
We present a compact quantum gravimeter based on a grating magneto-optical trap using 87Rb atoms that achieves μGal-level long-term stability without passive vibration isolation. The sensor head integrates magnetic shielding, an ion pump, optical components, and a classical seismometer within a total volume of less than 75L. The gravimeter achieves a sensitivity of 270 μGal/Hz and a stability of 5 μGal at a 1-h average with the long-term gravity record in good agreement with the theoretical tidal model. These results demonstrate a field-deployable platform for portable and chip-integrable quantum gravimetry.
Gravity holds great potential as a sensing channel: all matter gravitates, and this effect cannot be shielded. Gravity is so weak however, that extraordinary sensitivity is required to actualize this potential. In this talk, I will discuss a novel atomic gravimeter configuration that (a) has sufficient sensitivity to be a useful gravitational sensor, (b) is small, light and robust enough to operate as a mobile payload, and (c) has excellent spatial resolution for laboratory-scale fundamental physics research.
With over 20 years of development, atomic interferometry gravimeters have distinguished themselves in gravity measurements by their high precision and sensitivity. To cater to the demands of field absolute gravity measurements for marine and aerial gravity field measurements, resource exploration, inertial navigation, and positioning, the miniaturization, mobility, and engineering of atomic interferometry gravimeters have become crucial areas of development. On this basis, this article elucidates the principles of atomic interferometry gravimeters, encompassing various laser cooling techniques, magneto-optical traps, and Raman light interference. As a matter of fact, it provides an overview of the principles and achieved precision benchmarks of portable, vehicular, airborne, and shipborne atomic interferometry gravimeters. Additionally, it analyzes the experimental content and results of maritime, terrestrial, and aerial experiments based on portable atomic interferometry gravimeters. The limitations of portable atomic interferometry gravimeters are discussed, along with an exploration of their application prospects. Overall, these results shed light on guiding further exploration of mobile atom interferometry gravity.
The gravimeter based on atom interferometry has potentially wide applications on building the gravity networks, geophysics as well as gravity assisted navigation. Here, we demonstrate experimentally a portable atom gravimeter operating in the noisy urban environment. Despite the influence of noisy external vibrations, our portable atom gravimeter reaches a sensitivity as good as 65 uGal/\sqrt{Hz} and a resolution of 1.1 uGal after 4000 s integration time, being comparable to state-of-the-art atom gravimeters. Our achievement paves the way for bring the portable atom gravimeter to field applications, such as gravity survey on a moving platform.