A portable atom gravimeter operating in noisy urban environments
Bin Chen, Jinbao Long, Hongtai Xie, Chenyang Li, Luokan Chen, Bonan, Jiang, Shuai Chen

TL;DR
This paper demonstrates a portable atom gravimeter capable of operating accurately in noisy urban environments, achieving sensitivity comparable to laboratory standards, and enabling practical field applications like gravity surveys on moving platforms.
Contribution
The authors develop and experimentally validate a portable atom gravimeter that maintains high sensitivity in noisy urban settings, advancing field deployment potential.
Findings
Achieves 65 uGal/√Hz sensitivity in noisy environments
Attains 1.1 uGal resolution after 4000 s integration
Comparable performance to state-of-the-art atom gravimeters
Abstract
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.
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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Advanced Frequency and Time Standards · Atomic and Subatomic Physics Research
