Optical Lattice Clocks as Candidates for a Possible Redefinition of the SI Second

被引：4

作者：

Gurov, M. ^{[1
]}

McFerran, J. J. ^{[1
]}

Nagorny, B. ^{[1
]}

Tyumenev, R. ^{[1
]}

Xu, Z. ^{[1
]}

Le Coq, Y. ^{[1
]}

Le Targat, R. ^{[1
]}

Lemonde, P. ^{[1
]}

Lodewyck, J. ^{[1
]}

Bize, S. ^{[1
]}

机构：

[1] Univ Paris 06, Lab Natl Metrol & Essais LNE SYRTE, Observ Paris, CNRS, F-75014 Paris, France

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2013年 / 62卷 / 06期

关键词：

Clocks electromagnetic compatibility and interference; electromagnetics; electromagnetic radiation; frequency; instrumentation and measurement; measurement; time measurement; FREQUENCY STANDARD; CAVITY; SHIFT;

D O I：

10.1109/TIM.2013.2242638

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：

In this paper, we review several characteristics of optical lattice clocks as candidates for a future redefinition of the International System of Units (SI) second using an atomic transition in the optical domain, focusing on experiments performed at SYRTE using one mercury (Hg) and two strontium (Sr) optical lattice clocks. Beyond the technical aspects such as the stability and systematic frequency-shift assessments of the clocks, practical aspects have to be considered, such as the careful determination of the optical frequency with respect to the cesium primary standard and the worldwide reproducibility of the clock frequency by local and remote clock comparisons.

引用

页码：1568 / 1573

页数：6

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