Multiphoton etanglement: production and applications

Marek Żukowski

doi:10.1117/12.823481

20 May 2009 Multiphoton etanglement: production and applications

Marek Żukowski

Proceedings Volume 7366, Photonic Materials, Devices, and Applications III; 73660Q (2009) https://doi.org/10.1117/12.823481
Event: SPIE Europe Microtechnologies for the New Millennium, 2009, Dresden, Germany

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.

Citation Download Citation

Marek Żukowski "Multiphoton etanglement: production and applications", Proc. SPIE 7366, Photonic Materials, Devices, and Applications III, 73660Q (20 May 2009); https://doi.org/10.1117/12.823481

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