大量音波共振器における多音波フォック状態の作成と制御
Yiwen Chu1,2, Prashanta Kharel3,4, Taekwan Yoon3,4
1Department of Applied Physics, Yale University, New Haven, CT, USA. yiwen.chu@yale.edu.
Nature
|November 23, 2018
まとめ
研究者は超伝導量子ビットを使って 音響共鳴器で多音響フォック状態を作り出しました これは,量子情報と基礎物理学の研究のために,マクロスコープの機械的なオブジェクトの量子制御を進める.
科学分野:
- 量子物理学
- 量子音学について
- 顕微鏡量子力学
背景:
- 機械運動の量子状態は,量子情報,計量学,そして基礎物理学にとって極めて重要です.
- 超伝導量子ビットと音響共鳴器を組み合わせることで,マクロスケールの運動モードで量子操作が可能になり,量子メモリやトランスデューサとして機能します.
- 量子理論の修正を 探求することができるのです
研究 の 目的:
- マクロスケールの大量音波共振器で多音波フォック状態の制御された生成を実証する.
- 準備済みの状態の量子的性質を ワイガーン・トモグラフィーと状態再構築で強調する.
- 量子資源としての 音響モードの可能性を 紹介するためです
主な方法:
- マルチフォノンフォック状態の制御生成
- 超伝導クビットを使って 個々のフォノンモードを 選択的に結合する
- 量子状態の特徴化のためにウィーナー断層撮影と状態再構築を行う.
主要な成果:
- マクロスケールの音響共鳴器でマルチフォノンフォック状態の制御生成が成功しました.
- これらの準備状態の量子的性質の実証
- 音響共鳴器の長いコヒーレンスタイムと 精密な量子ビットのカップリングを活用する
結論:
- マクロスケールの機械的なオブジェクトの精巧な量子制御を可能にします.
- 量子資源として 効率的に利用できます
- この研究は量子技術と 基礎物理学の先進的な応用への道を開きます
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