量子ネットワークの隣接しないノード間の量子ビットのテレポート
S L N Hermans1, M Pompili1, H K C Beukers1
1QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands.
Nature
|May 25, 2022
まとめ
研究者は量子ネットワークの 隣接しないノード間の 量子テレポーテーションを達成しました この画期的な発見により 将来の量子インターネットアプリケーションの 信頼性の高い量子情報伝達が可能になります
科学分野:
- 量子情報科学
- 量子ネットワーク
背景:
- 量子テレポーテーションは量子インターネットの 鍵であり 損失を伴うネットワーク上で 信頼性の高い量子情報転送を可能にします
- 以前のデモは,絡み合いと量子ビットの一貫性に関する厳格な要件のために,直接接続されたノードに限定されていました.
研究 の 目的:
- マルチノード量子ネットワークの 遠隔のノード間の 量子テレポーテーションを証明する
- 量子ネットワークのデモンストレーションのスケーラビリティを阻害する制限を克服する.
主な方法:
- 光学的に接続された固体スピン量子ビットを使った3ノード量子ネットワーク
- リモートエンタグメント生成,中央ノードでのエンタグメント交換,およびメモリ内の量子ビットストレージを実装した.
- 量子ビットの読み取り手順とエンタグレーション生成中のアクティブメモリ保護を開発しました.
主要な成果:
- 隣接しないノード間の 量子テレポーテーションを成功させた
- クラシックより高いテレポーテーションの精度で 成功を収めた
- ユニット効率でも 効率的なテレポーテーションを証明した
結論:
- この研究はスケーラブルな量子ネットワークの 重要な構成要素を提示しています
- マルチノード・テレポート・プロトコルと 量子インターネット・アプリケーションへの道を開く.
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