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Beamlike high-brightness source of polarization-entangled photon pairs

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Title Beamlike high-brightness source of polarization-entangled photon pairs
Author Niu, Xiao-Ling; Huang, Yun-Feng; Xiang, Guo-Yong; Guo, Guang-Can; Ou, Z. Y.
Journal Name Optics Letters
Year Published 2008
Place of publication United States
Publisher Optical Society of America
Abstract We report on an ultrabright beamlike source of polarization-entangled photon pairs that is suitable for the task of multiphoton quantum information processing. The photon pairs are generated from a beamlike type-II parametric downconversion process in two adjacently located but 180° rotated β-barium borate crystals. Approximately 30,000 s−1 entangled photon pairs are recorded experimentally with only 100mW pump power. The fidelity of the generated entangled state as compared with a Bell state is measured to be 0.974 with the method of quantum state tomography. With this source, we also obtain a violation of Bell's inequality by 61 standard deviations in just a few seconds.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.opticsinfobase.org/
Alternative URI http://dx.doi.org/10.1364/OL.33.000968
Volume 33
Issue Number 9
Page from 968
Page to 970
ISSN 0146-9592
Date Accessioned 2009-12-03
Date Available 2009-12-11T06:46:10Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Cross discipline
URI http://hdl.handle.net/10072/27381
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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