光学的に閉じ込められた原子の多粒子の絡み合いのための制御された衝突

Olaf Mandel¹, Markus Greiner, Artur Widera

¹Sektion Physik, Ludwig-Maximilians-Universität, Schellingstrasse 4/III, D-80799 Munich, Germany.

Nature

|October 31, 2003

まとめ

研究者は,光学格子内の中性原子を使用して,高度に絡み合った多粒子状態を作成しました. このブレークスルーにより,スケーラブルな量子情報処理と基礎物理学の研究が可能になる.

科学分野:

量子力学は,量子力学という
量子情報科学とは,量子情報科学である.

背景:

絡み合いは,量子力学,量子情報処理,計算において極めて重要です.
高度に絡み合った多粒子の状態を生成することは,実験的に困難ですが,基本的な物理学とアプリケーションにとって不可欠です.

研究の目的:

光学格子における中性原子の高度に絡み合った状態の形成を報告する.
量子情報処理に適用できる,絡み合った状態を生成する方法を実証する.

主な方法:

光学網の周期的ポテンシャルに閉じ込められた中性原子を利用する.
隣接する原子間の制御された衝突を用い,量子ゲートを並行して実装する.
多体系における一貫した絡み合いや解き合いのダイナミクスを観察する.

主要な成果:

中性原子の高度に絡み合った状態を成功裏に作り出した.
制御された原子衝突を通して,大規模に並行する量子ゲート操作を実証した.
一つのステップで形成された,絡み合いを示す一貫した多体ダイナミクスを観測した.

結論:

高度に絡み合った状態をスケーラブルな方法で創造することは,光学格子と制御された原子衝突を使用して達成できます.
この方法は,量子情報処理の進歩と基本的な量子現象の探索のための堅固なプラットフォームを提供します.

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