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Updated: Jul 17, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
光学情報のコヒーレント制御と物質の波動のダイナミクス
Naomi S Ginsberg1, Sean R Garner, Lene Vestergaard Hau
1Department of Physics, and Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
Nature
|February 9, 2007
まとめ
科学者は,光パルスを物質波に変換することによって,2つのボース・アインシュタイン凝縮体間の情報を転送しました. この量子制御技術は,原子物質-波動力学を使用して光パルスを保存し,再生します.
科学分野:
- 量子光学と原子物理学.
- ボーゼ-アインシュタイン凝縮体における光物質相互作用の探査.
背景:
- 物質を光で操作し,その逆も操作する上で,大きな進歩がありました.
- 冷たい,密度の高い原子雲と共鳴レーザーフィールドは,研究のための豊富なシステムを提供します.
- ボーゼ・アインシュタイン凝縮体 (BEC) の超低速光伝播は,極度の光操作を披露している.
研究 の 目的:
- 空間的に分離された2つのボース・アインシュタイン凝縮体間の遅い光パルスの貯蔵と復活を実証する.
- 光パルスを移動する物質波に変換することによって情報伝達を示すために.
主な方法:
- カップリングフィールドの存在下で,探査レーザーパルスをBECに注入し,空間圧縮する.
- 光パルスの原子相乗状態への変換 (静止および反転成分).
- プリントされた振幅と相情報の転送は,反転する原子"メッセンジャー"波を通して行われます.
- 結合レーザーで再照明し,メッセンジャーパルスを一貫して追加することによって,第2のBECから光パルスを復活させる.
主要な成果:
- 160μm離れた別個のBECから,ゆっくりとした光パルスが保存され,その後復活しました.
- 光パルスを移動する物質波に変換することによって情報伝達の実証.
- 再生された光パルスは,原子印の相対的な振幅と相を正確に記録します.
結論:
- 物質の波動性を利用した一貫した光学情報処理の劇的な実証を提供します.
- 量子情報処理と波関数彫刻における量子制御の応用の可能性を強調する.
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