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Distinguishing genuine entangled two-photon-polarization states from independently generated pairs of entangled photons

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/774

Title: Distinguishing genuine entangled two-photon-polarization states from independently generated pairs of entangled photons
Authors: Tsujino, Kenji Browse this author
Hofmann, Holger F Browse this author
Takeuchi, Shigeki3 Browse this author →KAKEN DB
Sasaki, Keiji Browse this author →KAKEN DB
Authors(alt): 竹内, 繁樹3
Issue Date: 16-Apr-2004
Publisher: American Physical Society
Journal Title: Physical Review Letters
Volume: 92
Issue: 15
Start Page: 153602/1
End Page: 153602/4
Publisher DOI: 10.1103/PhysRevLett.92.153602
PMID: 15169287
Abstract: A scheme to distinguish entangled two-photon-polarization (ETP) states from two independent entangled one-photon-polarization (EOP) states is proposed. Using this scheme, the experimental generation of ETP by parametric down-conversion is confirmed through the anticorrelations among three orthogonal two-photon-polarization states. The estimated fraction of ETP among the correlated photon pairs is 37% in the present experimental setup.
Description: 2光子状態は、2つの光子の波動関数が時空間的に完全に重なりあった状態で、単純に光子が2つある状態とは異なります。たとえば、その偏光状態は、単純に考えた場合の2×2=4ではなく、3つに限られます。今回の研究は、その2つの光子状態間のもつれ合いの生成を、単純な「2つのもつれ合い光子対」から区別して検証した世界初の成果です。今後の、多粒子状態間の量子相関の実験的な研究への先駆けになる物と期待されます。
Rights: (c) 2004 The American Physical Society
Relation: http://prl.aps.org/
Type: article (author version)
URI: http://hdl.handle.net/2115/774
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 竹内 繁樹

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