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Summary & Details

A Nuclear Clock Aiming for an Error of One Second in 300 Billion Years

3,000億年で1秒の誤差を目指す原子核時計

Delivery: Available on this site

Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20254162

Paper/Info type: Journal of Society of Automotive Engineers of Japan

Vol.79 No.3

Pages: 88-93(Total 6 p)

Date of publication: Mar 2025

Publisher: JSAE

Language: Japanese

Detailed Information

Category(J)	ホットトピックス Translation
Category(E)	Hot Topics
Author(J)	1) 山口敦史
Author(E)	1) Atsushi Yamaguchi
Affiliation(J)	1) 理化学研究所
Abstract(J)	超高精度な原子時計は、科学分野における精密計測の基盤となるばかりでなく、一般社会においても、全球測位衛星システム(GNSS)によるナビゲーションシステムを可能にするなど大きな役割を果たしている。既存の原子時計の精度のさらに一桁上の精度をめざす原子核時計の原理とその開発について解説する。 Translation
Abstract(E)	Highly accurate atomic clocks not only provide the basis for precision measurements in the scientific field but also play a major role in society, such as navigation systems based on the Global Navigation Satellite System（GNSS）. In this paper, we describe the principle and development of nuclear clocks, which aim to achieve an accuracy one order of magnitude higher than that of existing atomic clocks.

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