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

J. Leach; B. Jack; J. Romero; M. Ritsch-Marte; R.W. Boyd; A.K. Jha; S.M. Barnett; S. Franke-Arnold; M.J. Padgett

doi:10.1364/OE.17.008287

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

J. Leach, B. Jack, J. Romero, M. Ritsch-Marte, R.W. Boyd, A.K. Jha, S.M. Barnett, S. Franke-Arnold, M.J. Padgett

Physics

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140 Citations (Scopus)

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Abstract

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.

Original language	English
Pages (from-to)	8287-8293
Number of pages	7
Journal	Optics Express
Volume	17
Issue number	10
DOIs	https://doi.org/10.1364/OE.17.008287
Publication status	Published - 11 May 2009

Keywords

hidden variable theories
local theories
light beams
entanglement

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10.1364/OE.17.008287

3B320156 C8BB C84B B779FE2D886C32E5 179412Final published version, 946 KB

1 Finished

Full-field Coherent Quantum Imaging
Barnett, S.
EPSRC (Engineering and Physical Sciences Research Council)
1/04/08 → 31/05/12
Project: Research

Cite this

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AU - Leach, J.

AU - Jack, B.

AU - Romero, J.

AU - Ritsch-Marte, M.

AU - Boyd, R.W.

AU - Jha, A.K.

AU - Barnett, S.M.

AU - Franke-Arnold, S.

AU - Padgett, M.J.

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Y1 - 2009/5/11

N2 - 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.

AB - 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.

KW - hidden variable theories

KW - local theories

KW - light beams

KW - entanglement

U2 - 10.1364/OE.17.008287

DO - 10.1364/OE.17.008287

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JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 10

ER -

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

Abstract

Keywords

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Projects

Full-field Coherent Quantum Imaging

Cite this