原子配列の波導体結合単体集合刺激
Neil V Corzo1,2, Jérémy Raskop1, Aveek Chandra1
1Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Paris, France.
Nature
|February 6, 2019
まとめ
研究者はナノスケール波導体と結合した 超冷たい原子で単一の 集合的原子刺激を作り出しました これは量子技術の重要なステップである オンデマンドの単光子放射を可能にします
科学分野:
- 量子光学
- 原子物理学
- ナノフォトニクス
背景:
- 超冷たい原子とナノフォトニックデバイスは 拡張性や新しい原子-光子の相互作用を提供します
- ダイエレクトリック波導体は,光を密かに閉じ込め,強力な光子-原子結合を提供します.
- 原子-波導体インターフェイスで非古典的な量子状態を準備することは依然として課題です.
研究 の 目的:
- 原子-波導体インターフェイスで非古典的な量子状態の準備と回収を実証する.
- 結合された超冷たい原子とナノスケールの波導体から オンデマンドの単光子放射を実現します
- 波導体量子電動学の分野を発展させるため
主な方法:
- 光学ナノファイバーに沿って 個々のセシウム原子の配列を捕まえる
- ナノスケールの波導体と結合する
- レーザーパルスで 蓄積された 集団の絡み合いの状態を 効率的に読み出す
主要な成果:
- ナノスケールの波導体と結合した単一の集合的原子刺激の観測.
- 誘導モードへの単一の光子のオンデマンド放出
- シングルフォトンの性質と約25%の回収効率の確認
結論:
- 波導体量子電動学の 重要な能力を示した
- 量子ネットワーク,非線形光学,多体物理学の新しい道を開いた.
- 量子レベルでの制御された量子状態の準備と操作のためのプラットフォームを確立しました.
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