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Proceedings Paper

Multiphoton etanglement: production and applications
Author(s): Marek Żukowski
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Paper Abstract

Some new experiments leading to observation of multi-photon entanglement will be presented. They utilize multi-pair emissions in a down-conversion crystal. In configurations that avoid interferometric overlaps this leads to a high visibility multi-photon interference. General theoretical results concerning the influence of photon statistics and distinguishability on the interference effects in such experiments is be given. Methods of detection of entanglement in multi-qubit systems, via Bell's theorem and a non-linear generalization of entanglement witnesses, will be presented. Finally it will be shown that multi-photon entanglement can be applied to reduce of communication complexity of some computational tasks.

Paper Details

Date Published: 20 May 2009
PDF: 7 pages
Proc. SPIE 7366, Photonic Materials, Devices, and Applications III, 73660Q (20 May 2009); doi: 10.1117/12.823481
Show Author Affiliations
Marek Żukowski, Uniw. Gdanski (Poland)

Published in SPIE Proceedings Vol. 7366:
Photonic Materials, Devices, and Applications III
Ali Serpenguzel; Gonçal Badenes; Giancarlo C. Righini, Editor(s)

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