Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Angular dimensionality of two-photon entanglement

J. B. Pors, Sumant S. R. Oemrawsingh, Martin P. van Exter, Andrea Aiello, Gert W. ’t Hooft, E. R. Eliel, J. P. Woerdman

Published May 4, 2008• 0 citations
Publisher

Abstract

We pass twin-photons through rotatable angular phase plates, and detect entanglement that has a continuously variable angular dimensionality D. Experimentally, D was varied from 2 to 6 and values up to 50 are practically feasible.
DOI
10.1109/qels.2008.4553051

Related papers

Angular Dimensionality of Two-Photon Entanglement

J. P. Woerdman, J. B. Pors, Sumant S. R. Oemrawsingh +4 more

We pass twin-photons through rotatable angular phase plates and detect entanglement which has a continuously variable azimuthal dimension Daz. Experimentally, Daz has been varied from 2.2 to 3 ; values up to 100 are practically feasible.

Frontiers in Optics•Jan 1, 2007•0 citations

Angular Dimensionality of Two-Photon Entanglement

E. R. Eliel, J. B. Pors, Sumant S. R. Oemrawsingh +4 more

We use rotatable angular phase plates to determine the angular dimensionality in twin-photon entanglement. We measure values between 2 and 6, depending on the shape of the phase plates; a value of 50 seems feasible.

International Conference on Quantum Information•Jan 1, 2008•0 citations

Shannon Dimensionality of Quantum Channels and Its Application to Photon Entanglement

J. B. Pors, Sumant S. R. Oemrawsingh, Andrea Aiello +4 more

We introduce the concept of Shannon dimensionality D as a new way to quantify bipartite entanglement as measured in an experiment. This is applied to orbital-angular-momentum entanglement of two photons, using two state analyzers composed of a rotatable angular-sector phase plate that is lens coupled to a single-mode fiber. We can deduce the value of D directly from the observed two-photon coincidence fringe. In our experiment, D varies between 2 and 6, depending on the experimental conditions. We predict how the Shannon dimensionality evolves when the number of angular sectors imprinted in the phase plate is increased and anticipate that D approximately 50 is experimentally within reach.

arXiv:0808.3325•Physical Review Letters•Sep 18, 2008•84 citations

Experimental Demonstration of Non-integer Orbital Angular Momentum Entanglement of Two Photons

J. P. Woerdman, Sumant S. R. Oemrawsingh, E. R. Eliel +4 more

The singular nature of a non-integer spiral phase plate allows easy manipulation of spatial superposition states. In this way we have observed very high dimensional (D ≥ 3700) spatial entanglement of twin photons generated by SPDC.

Frontiers in Optics•Jan 1, 2005•1 citation

Shannon Dimensionality of Quantum Channels

J. B. Pors, Sumant S. R. Oemrawsingh, Andrea Aiello +4 more

We introduce the Shannon dimensionality D to quantify the capacity of quantum channels. This is applied to angular entanglement of photons. Experimentally, D varies from 3 to 6 and values up to 50 are feasible.

Conference on Lasers and Electro-Optics•Jan 1, 2009•1 citation

Experimental Demonstration of Fractional Orbital Angular Momentum Entanglement of Two Photons

Sumant S. R. Oemrawsingh, Xuan Ma, D. Voigt +4 more

The singular nature of a noninteger spiral phase plate allows easy manipulation of spatial degrees of freedom of photon states. Using two such devices, we have observed very high-dimensional spatial entanglement of twin photons generated by spontaneous parametric down-conversion.

arXiv:quant-ph/0506253•Physical Review Letters•Dec 8, 2005•243 citations
We introduce the concept of Shannon dimensionality D as a new way to quantify bipartite entanglement as measured in an experiment. This is applied to orbital-angular-momentum entanglement of two photons, using two state analyzers composed of a rotatable angular-sector phase plate that is lens coupled to a single-mode fiber. We can deduce the value of D directly from the observed two-photon coincidence fringe. In our experiment, D varies between 2 and 6, depending on the experimental conditions. We predict how the Shannon dimensionality evolves when the number of angular sectors imprinted in the phase plate is increased and anticipate that D approximately 50 is experimentally within reach.