High-dimensional spatial entanglement observed with an electron multiplying CCD camera

Tasca, D. S., Edgar, M. P., Izdebski, F., Warburton, R. E., Leach, J., Agnew, M., Buller, G. S., Boyd, R. W. and Padgett, M. J. (2012) High-dimensional spatial entanglement observed with an electron multiplying CCD camera. In: Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, Edinburgh, UK, 24-26 Sep 2012, 85421T. (doi: 10.1117/12.981414)

Abstract

Using an electron multiplying CCD camera we observe both image plane (position) and far field (momentum) correlations between photon pairs produced from spontaneous parametric down-conversion when using a 201 x 201 bi-dimensional array of pixels and a flux of around 0.02 photons/pixel. After background subtraction we characterize the strength of signal and idler correlations in both transverse dimensions by applying entanglement and EPR criteria, showing good agreement with the theoretical predictions. The application of such devices in quantum optics could have a wide range, including quantum computation with spatial degrees of freedom of single photons.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Padgett, Professor Miles and Edgar, Dr Matthew and Boyd, Professor Robert and Leach, Mr Jonathan and Tasca, Dr Daniel
• Authors: Tasca, D. S., Edgar, M. P., Izdebski, F., Warburton, R. E., Leach, J., Agnew, M., Buller, G. S., Boyd, R. W., and Padgett, M. J.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• ISSN: 0277786X