How to Observe High-Dimensional Two-Photon Entanglement with Only Two Detectors | Zendy

S. S. R. Oemrawsingh | Zendy; Andrea Aiello | Zendy; E. R. Eliel | Zendy; G. Nienhuis | Zendy; J. P. Woerdman | Zendy

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How to Observe High-Dimensional Two-Photon Entanglement with Only Two Detectors

Author(s) -

S. S. R. Oemrawsingh,

Andrea Aiello,

E. R. Eliel,

G. Nienhuis,

J. P. Woerdman

Publication year - 2004

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.92.217901

Subject(s) - physics , quantum entanglement , hilbert space , quantum mechanics , phase space , photon , space (punctuation) , angular momentum , qubit , parameter space , phase (matter) , spiral (railway) , quantum , mathematical analysis , mathematics , geometry , philosophy , linguistics

We propose a novel setup to investigate the entanglement of orbital angular momentum states living in a high-dimensional Hilbert space. We incorporate noninteger spiral phase plates in spatial analyzers, enabling us to use only two detectors. The two-photon states that are produced are not confined to a 2 x 2-dimensional Hilbert space, and the setup allows the probing of correlations in a high-dimensional space. For the special case of half-integer spiral phase plates, we predict that the Clauser-Horne-Shimony-Holt-Bell parameter S is larger than achievable for two qubits (S=2 sqrt[2]), namely, S=31 / 5.

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