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4つの量子記憶の間のスピン波の絡み合い

K S Choi¹, A Goban, S B Papp

¹Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125, USA.

|November 19, 2010

まとめ

研究者らは,量子ネットワーク全体に多当事者絡み合いを分布させるための新しい方法を実証した. このブレークスルーにより,原子の絡み合いが光子チャンネルに転送され,量子通信とシミュレーション能力が向上します.

科学分野:

量子情報科学とは,量子情報科学である.
量子ネットワークは量子ネットワークです.
量子コミュニケーションとは

背景:

量子ネットワークには,量子メモリとチャネル間の絡み合った状態を生成,保存,転送するシステムが必要です.
既存の二重システムでは,絡み合いの分布が示されていますが,多重の絡み合いのマッピングは依然として課題です.
アプリケーションには,量子計算,通信,および量子的重要な現象のシミュレーションが含まれています.

研究の目的:

量子メモリから量子チャネルへ,多当事者絡み合いの一貫した移転を実証する.
複雑な量子情報処理のための量子ネットワークの能力を向上させる.
四部分の絡み合いを特徴付ける方法を開発し,検証する.

主な方法:

4つの原子記憶における測定誘発の絡み合いの生成.
4つの光子チャンネルに原子の絡み合いをユーザ制御で一貫して転送する.
量子不確実性関係を用いた四部分の絡み合いの特徴化.

主要な成果:

4つの量子記憶とチャネルを含むエンタグメントを保存し,転送しました.
原子の絡み合いの一貫した移転を光子チャンネルに実証した.
量子不確実性関係を使用して完全な四部分の絡み合いを検証しました.

結論:

この研究は,量子ネットワーク全体に多党派の絡み合いを分配する上で重要な前進を表しています.
開発された絡み合いの検証方法は,凝縮物質系に適用できます.
量子シミュレーションと安全な量子通信の新たな可能性を可能にします.

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