Multiphoton entanglement: production and applications

被引：0
|
作者：
Zukowski, Marek [1 ]
机构：
[1] Univ Gdansk, Inst Theoret Phys & Astrophys, PL-80952 Gdansk, Poland
来源：
PHOTONIC MATERIALS, DEVICES, AND APPLICATIONS III | 2009年 / 7366卷
关键词：
Entanglement; multi-photon interference; communication complexity; quantum information; QUANTUM COMMUNICATION COMPLEXITY; PHOTONS;
D O I：
10.1117/12.823481
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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.
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页数：7
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