Optical atomic clock comparison through turbulent air

被引：22

作者：

Bodine, Martha, I ^{[1
]}

Deschenes, Jean-Daniel ^{[2
]}

Khader, Isaac H. ^{[1
,3
]}

Swann, William C. ^{[1
]}

Leopardi, Holly ^{[1
,3
]}

Beloy, Kyle ^{[1
]}

Bothwell, Tobias ^{[4
]}

Brewer, Samuel M. ^{[1
]}

Bromley, Sarah L. ^{[4
]}

Chen, Jwo-Sy ^{[1
]}

Diddams, Scott A. ^{[1
,3
]}

Fasano, Robert J. ^{[1
]}

Fortier, Tara M. ^{[1
]}

Hassan, Youssef S. ^{[1
,4
]}

Hume, David B. ^{[1
]}

Kedar, Dhruv ^{[4
]}

Kennedy, Colin J. ^{[1
,4
]}

Koepke, Amanda ^{[1
]}

Leibrandt, David R. ^{[1
]}

Ludlow, Andrew D. ^{[1
]}

McGrew, William F. ^{[1
]}

Milner, William R. ^{[4
]}

Nicolodi, Daniele ^{[1
,3
]}

Oelker, Eric ^{[1
,4
]}

Parker, Thomas E. ^{[1
]}

Robinson, John M. ^{[4
]}

Romish, Stefania ^{[1
]}

Schaffer, Stefan A. ^{[1
]}

Sherman, Jeffrey A. ^{[1
]}

Sonderhouse, Lindsay ^{[4
]}

Yao, Jian ^{[1
]}

Ye, Jun ^{[1
,4
]}

Zhang, Xiaogang ^{[1
,3
]}

Newbury, Nathan R. ^{[1
]}

Sinclair, Laura C. ^{[1
]}

机构：

[1] NIST, 325 Broadway, Boulder, CO 80305 USA

[2] Octosig Consulting, Quebec City, PQ G1V 0A6, Canada

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

[4] Univ Colorado, JILA, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW RESEARCH | 2020年 / 2卷 / 03期

关键词：

FREQUENCY RATIO; TIME TRANSFER; METROLOGY; SR; YB;

D O I：

10.1103/PhysRevResearch.2.033395

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use frequency-comb-based optical two-way time-frequency transfer (O-TWTFT) to measure the optical frequency ratio of state-of-the-art ytterbium and strontium optical atomic clocks separated by a 1.5-km open-air link. Our free-space measurement is compared to a simultaneous measurement acquired via a noise-cancelled fiber link. Despite nonstationary, ps-level time-of-flight variations in the free-space link, ratio measurements obtained from the two links, averaged over 30.5 hours across six days, agree to 6 x 10(-19), showing that O-TWTFT can support free-space atomic clock comparisons below the 10(-18) level.

引用

页数：7

共 59 条

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