独立した源から放出される単一の電子の相関性と区別がつかない性
E Bocquillon1, V Freulon, J-M Berroir
1Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS (UMR8551), Université Pierre et Marie Curie, Université Paris Diderot, Paris, France.
Science (New York, N.Y.)
|January 26, 2013
まとめ
研究者は2つの単一の電子のオンデマンド放出を達成し,量子干渉を実証しました. このブレークスルーにより,量子情報処理のための量子伝導体における一貫した電子波パケットの操作が可能になった.
科学分野:
- 量子エレクトロニクスとは
- 量子情報処理とは,量子情報処理である.
背景:
- 量子技術では,独立した源からコヒーレントで区別がつかない電子をオンデマンドで生成することが不可欠です.
- 量子情報処理は,量子状態の制御された操作に依存しています.
研究 の 目的:
- 2つの独立した同期された単電子源を使用して2粒子の干渉を実証する.
- 量子導体における一貫し,区別がつかない単電子波束の操作を調査する.
主な方法:
- 2つの独立したオンデマンド単電子源を使用した.
- 電子ビームスプリッターに同期した単電子波パケットを送信します.
- 電子分割と干渉を検出するために低周波電流のノイズを記録します.
主要な成果:
- 2粒子の干渉が観測され,量子交換効果が確認されました.
- 区別がつかない波束として放出された両方の電子は,ビームスプリッターの異なる出口を通って出ました.
- ビーム分割器の電子の同期到着時間は,観測された干渉に決定的でした.
結論:
- 2電子の干渉の実証は,量子電子学の重要な一歩である.
- この研究は,一貫性があり区別がつかない単一電子の波のパケットを操作するための可能性を開きます.
- この発見は,量子情報アプリケーションのための量子伝導体の開発を進めています.
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