Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10-18 Uncertainty

被引：49

作者：

Ohmae, Noriaki ^{[1
,2
,3
]}

Takamoto, Masao ^{[1
,2
]}

Takahashi, Yosuke ^{[2
,4
,5
]}

Kokubun, Motohide ^{[2
,6
]}

Araki, Kuniya ^{[1
,2
]}

Hinton, Andrew ^{[1
]}

Ushijima, Ichiro ^{[1
,2
,4
]}

Muramatsu, Takashi ^{[7
]}

Furumiya, Tetsuo ^{[7
]}

Sakai, Yuya ^{[7
]}

Moriya, Naoji ^{[7
]}

Kamiya, Naohiro ^{[7
]}

Fujii, Kazuaki ^{[8
]}

Muramatsu, Ryuya ^{[8
]}

Shiimado, Toshihiro ^{[8
]}

Katori, Hidetoshi ^{[1
,2
,4
]}

机构：

[1] RIKEN Ctr Adv Photon, Space Time Engn Res Team, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[2] RIKEN, Quantum Metrol Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[3] Fukuoka Univ, Dept Appl Phys, Jonan Ku, 8-19-1 Nanakuma, Fukuoka 8140180, Japan

[4] Univ Tokyo, Grad Sch Engn, Dept Appl Phys, Bunkyo Ku, 2-11-16 Yayoi, Tokyo 1138656, Japan

[5] Citizen Watch Co Ltd, 840 Simotomi, Tokorozawa, Saitama 3598511, Japan

[6] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan

[7] Shimadzu Co Ltd, 3-9-4 Hikaridai, Seika, Kyoto 6190237, Japan

[8] Equos Res Co Ltd, Chiyoda Ku, 1-18-13 Sotokanda, Tokyo 1010021, Japan

来源：

ADVANCED QUANTUM TECHNOLOGIES | 2021年 / 4卷 / 08期

关键词：

optical frequency metrology; optical lattice clock; transportable atomic clock; FREQUENCY RATIO; YB;

D O I：

10.1002/qute.202100015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Transportable strontium optical lattice clocks are developed with a fractional uncertainty of 5.5 x 10(-18) for applications outside laboratories. A single clock consists of a spectroscopy chamber and two laser boxes, where all lasers are based on external cavity diode lasers with an adjustment-free, laser-welded output coupler. When this system is transported from the laboratory at RIKEN to a broadcasting tower, the instruments experience acceleration change of 4 G at maximum. However, no serious optical misalignments are found. The demonstration opens up field applications of optical atomic clocks resolving a centimeter height difference.

引用

页数：10

共 35 条

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