An Atomic Clock with 10-18 Instability

被引：672

作者：

Hinkley, N. ^{[1
,2
]}

Sherman, J. A. ^{[1
]}

Phillips, N. B. ^{[1
]}

Schioppo, M. ^{[1
]}

Lemke, N. D. ^{[1
]}

Beloy, K. ^{[1
]}

Pizzocaro, M. ^{[1
,3
,4
]}

Oates, C. W. ^{[1
]}

Ludlow, A. D. ^{[1
]}

机构：

[1] NIST, Boulder, CO 80305 USA

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[3] Inst Nazl Ric Metrol, I-10135 Turin, Italy

[4] Politecn Torino, I-10125 Turin, Italy

来源：

SCIENCE | 2013年 / 341卷 / 6151期

关键词：

OPTICAL CLOCKS; FREQUENCY STABILITY; METROLOGY; TIME; STANDARDS; NOISE;

D O I：

10.1126/science.1240420

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Atomic clocks have been instrumental in science and technology, leading to innovations such as global positioning, advanced communications, and tests of fundamental constant variation. Timekeeping precision at 1 part in 10(18) enables new timing applications in relativistic geodesy, enhanced Earth- and space-based navigation and telescopy, and new tests of physics beyond the standard model. Here, we describe the development and operation of two optical lattice clocks, both using spin-polarized, ultracold atomic ytterbium. A measurement comparing these systems demonstrates an unprecedented atomic clock instability of 1.6 x 10(-18) after only 7 hours of averaging.

引用

页码：1215 / 1218

页数：4

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