割り切れない量子システムの実験的非古典性
Radek Lapkiewicz1, Peizhe Li, Christoph Schaeff
1Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Boltzmanngasse 5, Vienna A-1090, Austria.
Nature
|June 24, 2011
まとめ
量子力学は古典物理学と矛盾しており,これは単一光子量子の実験によって示されている. これらの発見は,文脈的でない隠された変数理論が量子理論と相容れないことを示しています.
科学分野:
- 量子物理学とは,量子物理学のことです.
- 量子力学の基礎 量子力学の基礎
背景:
- 古典物理学では,量子論 (ハイゼンベルクの不確実性原理) と異なり,性質がよく定義されていると仮定しています.
- 非文脈的隠された変数モデルでは,測定から独立して,事前に定義された性質を提案します.
- 量子ビットに関する以前の実験は,量子力学とこれらの古典的なモデルとの間の対立を示した.
研究 の 目的:
- 非文脈的理論を実験的にテストするには,最も単純な不可分割の量子システム:単一の qutrit.を使用します.
- 量子力学と,絡み合いに依存しない古典物理学の間の根本的な相容れないことを示すこと.
主な方法:
- シングルフォトニッククートリッツの実験.
- Klyachko, Can, Binicioğlu, and Shumovskyによって導かれたベル型不等式をテストする.
- 不平等の侵害を特定するために測定結果を分析する.
主要な成果:
- 単一の光子 qutrits を使用してKlyachko-Can-Binicioğlu-Shumovsky不等式の違反を観察しました.
- 実験結果は,すべての可能な測定のための共同確率分布の存在に対する証拠を提供します.
- 観察された違反は,システムが不可分であるため,絡み合いに起因することはできません.
結論:
- この実験は,文脈的でない隠された変数理論と量子力学の相容れないことを確認した.
- 結果は,絡み合いから独立して,古典物理学から根本的な逸脱を強調しています.
- この発見は,量子システムの非古典的性質を,最も単純なレベルでも強調しています.
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