Calibration of a compact absolute atomic gravimeter*

Xie, Hongtai; Chen, Bin; Long, Jin-Bao; Chen, Luo-Kan; Chen, Shuai

doi:10.1088/1674-1056/aba27b

Cited by 13 publications

(6 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the same year, the Lin group at Zhejiang University of Technology realized a sensitivity of 300 µGal/ √ Hz in their Raman atom gravimeter [161]. Recently, the Chen group at University of Science and Technology of China completed a Raman atom gravimeter (USTC-AG02) and achieved a sensitivity of 35 µGal/ √ Hz [162].…”

Section: Portable Atom Interferometermentioning

confidence: 99%

Precision measurements with cold atoms and trapped ions

Zhang,

Wang,

Zhu

et al. 2020

Preprint

View full text Add to dashboard Cite

Recent progresses on quantum control of cold atoms and trapped ions in both the scientific and technological aspects greatly advance the applications in precision measurement. Thanks to the exceptional controllability and versatility of these massive quantum systems, unprecedented sensitivity has been achieved in clocks, magnetometers and interferometers based on cold atoms and ions. Besides, these systems also feature many characteristics that can be employed to facilitate the applications in different scenarios. In this review, we briefly introduce the principles of optical clocks, cold atom magnetometers and atom interferometers used for precision measurement of time, magnetic field, and inertial forces. The main content is then devoted to summarize some recent experimental and theoretical progresses in these three applications, with special attention being paid to the new designs and possibilities towards better performance. The purpose of this review is by no means to give a complete overview of all important works in this fast developing field, but to draw a rough sketch about the frontiers and show the fascinating future lying ahead.

show abstract

Section: Portable Atom Interferometermentioning

confidence: 99%

Precision measurements with cold atoms and trapped ions

Zhang,

Wang,

Zhu

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Absolute gravimetry with a precision at the micro-Gal (1 μGal = 10 nm/s 2 ) level has been demonstrated [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ] through gravimeters based on light-pulse atom interferometers [ 9 ]. In a quiet environment, atomic gravimeters have shown unprecedented sensitivity [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

A Transportable Atomic Gravimeter with Constraint-Structured Active Vibration Isolation

Ruan,

Zhuang,

Yao

et al. 2024

Sensors

View full text Add to dashboard Cite

Many efforts have been taken in recent years to push atomic gravimeters toward practical applications. We demonstrate an atomic gravimeter named NIM-AGRb2 that is transportable and suitable for high-precision gravity measurements. Constraint-structured active vibration isolation (CS-AVI) is used to reduce the ground vibration noise. The constraint structure in CS-AVI ensures that the isolation platform only has vertical translation, with all other degrees of freedom (DoFs) being constrained. Therefore, the stability of active vibration isolation is enhanced. With the implementation of CS-AVI, the sensitivity of NIM-AGRb2 reached as low as 20.5 μGal/Hz1/2. The short-term sensitivity could be further reduced to 10.8 μGal/Hz1/2 in a seismologic observation station. Moreover, we evaluated the system noise of the gravimeter, and the results were consistent with our observations.

show abstract

“…A relatively overlooked class of HUMs targeted for gas separation are those based on the Hofmann clathrate structure. [8][9][10][11] Hofmann materials are characterised as either 2D or 3D coordination polymers whose frameworks are constructed using cyano-bridged bimetallic layers, pillared by heterocyclic ligands with N-donor atoms, Fig. 1.…”

Section: Introductionmentioning

confidence: 99%