Quantum correlations in position, momentum and intermediate bases, measured using fiber arrays

F. Izdebski, J. Leach, R. E. Warburton, D. G. Ireland, S. M. Barnett, A. M. Yao, G. S. Buller, M. J. Padgett

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We have developed a new approach to measuring the spatial position of a single photon. Using fibers of different length, all connected to a single detector allows us to use the high timing precision of single photon avalanche diodes (SPAD) to spatially locate the photon. We have built two 8-element detector arrays to measure the full-field quantum correlations in position, momentum and intermediate bases for photon pairs produced in parametric down conversion. The strength of the position-momentum correlations is found to be an order of magnitude below the classical limit.

Original languageEnglish
Title of host publicationComplex Light and Optical Forces VI
EditorsEnrique J Galvez, David L Andrews, Jesper Glückstad, Marat S Soskin
Number of pages8
ISBN (Print)9780819489173
Publication statusPublished - 2012
EventComplex Light and Optical Forces VI - San Francisco, United States
Duration: 25 Jan 201226 Jan 2012

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


ConferenceComplex Light and Optical Forces VI
CountryUnited States
CitySan Francisco

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