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Updated: Jun 28, 2025
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Quasi-light Storage for Optical Data Packets
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海上の光学時計
Jonathan D Roslund1, Arman Cingöz2, William D Lunden2
1Vector Atomic, Inc., Pleasanton, CA, USA. jon@vectoratomic.com.
Nature
|April 24, 2024
まとめ
研究者らは 携帯用のコンパクトな光学時計を開発しました この高度な時計は 高い精度と環境への無感性を備えており 航海や将来の計時ネットワークにとって 極めて重要です
科学分野:
- 物理学
- メトロロジー
- 量子技術
背景:
- 実験室の光学時計は高精度 (10−18 分の不精度以下) を達成する.
- 既存の輸送可能な光学時計は,サイズ,環境感度,コストの制限があり,その有用性を制限しています.
- 正確なタイムキーピングは ナビゲーション,地質学的モニタリング,量子ネットワークに不可欠です.
研究 の 目的:
- モバイルプラットフォームでの動作に適したコンパクトで環境に優しい光学時計を開発する.
- 困難な海上環境で高度な光学時計の使用の実現可能性を実証する.
主な方法:
- 分子ヨウ素スペクトロメーター,ファイバー周波数,制御電子を統合した35リットルの光学時計の開発.
- 海軍の船で20日間,このような3つの時計の継続的な操作とテストを行いました.
主要な成果:
- 開発された光学時計は環境条件に無感性を示し,海上で継続的に動作しました.
- 時計の誤差は1日300ピコ秒未満でした.
- この時計はアクティブ水素マザーに匹敵する性能を達成したが,その容量の10分の1にしか及ばなかった.
結論:
- この研究は,光学クロック技術の重要な進歩であり,モバイルプラットフォームへの導入を可能にします.
- 海上での成功例は,海上での高性能時計の運用に伴う歴史的な課題を克服しました.
- これによって 将来の光学的時刻計測ネットワークと 強化されたナビゲーションシステムへの道が開けます
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