Experimental quantum teleportation and multiphoton entanglement via interfering narrowband photon sources

被引：23
作者：
Yang, Jian [1 ,2 ]
Bao, Xiao-Hui [1 ,2 ,3 ]
Zhang, Han [1 ,2 ]
Chen, Shuai [1 ,2 ,3 ]
Peng, Cheng-Zhi [1 ,2 ]
Chen, Zeng-Bing [1 ,2 ]
Pan, Jian-Wei [1 ,2 ,3 ]
机构：
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
[3] Heidelberg Univ, Inst Phys, Philosophenweg 12, D-69120 Heidelberg, Germany
来源：
PHYSICAL REVIEW A | 2009年 / 80卷 / 04期
关键词：
light sources; multiphoton spectra; optical parametric devices; protocols; quantum communication; quantum computing; quantum entanglement; quantum optics; synchronisation; teleportation; ENTANGLING PHOTONS;
D O I：
10.1103/PhysRevA.80.042321
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we report a realization of synchronization-free quantum teleportation and narrowband three-photon entanglement through interfering narrowband photon sources. Since both the single-photon and the entangled photon pair utilized are completely autonomous, it removes the requirement of high-demanding synchronization techniques in long-distance quantum communication with pulsed spontaneous parametric down-conversion sources. The frequency linewidth of the three-photon entanglement realized is on the order of several MHz, which matches the requirement of atomic ensemble based quantum memories. Such a narrowband multiphoton source will have applications in some advanced quantum communication protocols and linear optical quantum computation.
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页数：4
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