Violation of a Bell inequality in two-dimensional orbital angular momentum state-spaces

被引：149

作者：

Leach, J. ^{[1
]}

Jack, B. ^{[1
]}

Romero, J. ^{[1
]}

Ritsch-Marte, M. ^{[2
]}

Boyd, R. W. ^{[3
]}

Jha, A. K. ^{[3
]}

Barnett, S. M. ^{[4
]}

Franke-Arnold, S. ^{[1
]}

Padgett, M. J. ^{[1
]}

机构：

[1] Univ Glasgow, Dept Phys & Astron, SUPA, Glasgow, Lanark, Scotland

[2] Innsbruck Med Univ, Div Biomed Phys, Innsbruck, Austria

[3] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

[4] Univ Strathclyde, Dept Phys, SUPA, Glasgow, Lanark, Scotland

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

LIGHT-BEAMS; ENTANGLEMENT;

D O I：

10.1364/OE.17.008287

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We observe entanglement between photons in controlled super-position states of orbital angular momentum (OAM). By drawing a direct analogy between OAM and polarization states of light, we demonstrate the entangled nature of high order OAM states generated by spontaneous downconversion through violation of a suitable Clauser Horne Shimony Holt (CHSH)-Bell inequality. We demonstrate this violation in a number of two-dimensional subspaces of the higher dimensional OAM Hilbert space. (C) 2009 Optical Society of America

引用

页码：8287 / 8293

页数：7

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