High accuracy gravitational red-shift evaluation at INRIM

被引：0
|
作者：
Calonico, D. [1 ]
Levi, F. [1 ]
Lorini, L. [1 ]
Godone, A. [1 ]
Cina, A. [2 ]
Bendea, I. H. [2 ]
机构：
[1] INRIM, Str Cacce 91, I-10135 Turin, Italy
[2] Politecn Torino, Turin, Italy
来源：
PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM-JOINTLY WITH THE 21ST EUROPEAN FREQUENCY AND TIME FORUM, VOLS 1-4 | 2007年
关键词：
D O I：
10.1109/FREQ.2007.4319032
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The gravitational redshift is presently one of the main biases in the comparison of primary frequency standard, and it could be a challenge for the forthcoming generation of atomic optical docks. In this paper we report the evaluation of the gravitational redshift with respect to the Geoid reference at INRIM laboratories, with an accuracy of 1x10(-17) in terms of relative frequency. The evaluation is based on GPS/levelling measurements and on the use of a local model for the Earth Geoid and its accuracy is limited by the reference potential of the Geoid.
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页码：62 / +
页数：2
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