ダイヤモンドの環境に対して無感な固体スピン欠陥の観測
Brendon C Rose1, Ding Huang1, Zi-Huai Zhang1
1Department of Electrical Engineering, Princeton University, Princeton, NJ 08544, USA.
まとめ
ダイアモンドの中性シリコン空白 (SiV0) は,環境騒音に対する優れた耐性を提供します. この量子欠陥は 長いコヒーレンス時間と 優れた光学特性を示し 量子ネットワークに最適です
科学分野:
- 量子科学と工学
- 固体物理学
- 材料科学
背景:
- 量子システムの設計は 量子技術にとって極めて重要です
- ダイヤモンドの色の中枢は 量子応用のための有望な固体プラットフォームです
- フォノンと電場による環境の不協和は 量子システムの性能を制限します
研究 の 目的:
- ニュートラルシリコンの空白 (SiV0) を報告し,環境の不協和性に無感性を高めました.
- 量子アプリケーションのためのSiV0のコヒーレンスと光学特性を特徴付ける.
主な方法:
- SiV0へのシリコンインプラントと変換を最適化するための材料工学.
- スピン・グリッドのリラクゼーションとコヒーレンス時間の測定
- ゼロフォノン線放射と光線幅を含む光学特性の特徴.
主要な成果:
- >80%のシリコンをSiV0に変換した.
- 観察されたスピングリッドのリラックス時間は1分,コヒーレンス時間は1秒に近づいています.
- ~90%のSiV0放出は,ほぼトランスフォーマー限定の光線幅を持つゼロフォノンラインに.
結論:
- 中性シリコンの空白 (SiV0) は,例外的な一貫性と光学特性を表しています.
- SiV0は環境の不協和感に 顕著な無感性を示しています
- これらの性質は SiV0 を量子ネットワークのアプリケーションにとって非常に有望な欠陥として位置づけています
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