New apparatus design for high-precision measurement of G with atom interferometry

被引：8
|
作者：
Jain, M. [1 ,2 ]
Tino, G. M. [1 ,2 ,4 ]
Cacciapuoti, L. [3 ]
Rosi, G. [1 ,2 ]
机构：
[1] Univ Firenze, Ist Nazl Fis Nucl, Sez Firenze, Dipartimento Fis & Astron, Via Sansone 1, I-50019 Sesto Fiorentino, FI, Italy
[2] Univ Firenze, Ist Nazl Fis Nucl, Sez Firenze, LENS, Via Sansone 1, I-50019 Sesto Fiorentino, FI, Italy
[3] European Space Agcy, Keplerlaan 1, NL-2200 AG Noordwijk, Netherlands
[4] CNR IFAC, Sesto Fiorentino, Italy
来源：
EUROPEAN PHYSICAL JOURNAL D | 2021年 / 75卷 / 07期
基金：
欧洲研究理事会;
关键词：
GRAVITATIONAL ACCELERATION; CONSTANT;
D O I：
10.1140/epjd/s10053-021-00212-6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a new scheme for an improved determination of the Newtonian gravitational constant G and evaluate it by numerical simulations. Cold atoms in free fall are probed by atom interferometry measurements to characterize the gravitational field generated by external source masses. Two source mass configurations having different geometries and using different materials are compared to identify an optimized experimental setup for the G measurement. The effects of the magnetic fields used to manipulate the atoms and to control the interferometer phase are also characterized.
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收藏
页数：9
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