Experimental quasi-single-photon transmission from satellite to earth

	Experimental quasi-single-photon transmission from satellite to earth
	Yin, Juan 1,2; Cao, Yuan 1,2; Liu, Shu-Bin 1,2; Pan, Ge-Sheng 1,2; Wang, Jin-Hong 1,2; Yang, Tao 1,2; Zhang, Zhong-Ping 3; Yang, Fu-Min 3; Chen, Yu-Ao 1,2; Peng, Cheng-Zhi 1,2
刊名	OPTICS EXPRESS
	2013-08-26
卷号	21 期号:17 页码:20032-20040
英文摘要	Free-space quantum communication with satellites opens a promising avenue for global secure quantum network and large-scale test of quantum foundations. Recently, numerous experimental efforts have been carried out towards this ambitious goal. However, one essential step - transmitting single photons from the satellite to the ground with high signal-to-noise ratio (SNR) at realistic environments - remains experimental challenging. Here, we report a direct experimental demonstration of the satellite-ground transmission of a quasi-single-photon source. In the experiment, single photons (similar to 0.85 photon per pulse) are generated by reflecting weak laser pulses back to earth with a cube-corner retro-reflector on the satellite CHAMP, collected by a 600-mm diameter telescope at the ground station, and finally detected by single-photon counting modules after 400-km free-space link transmission. With the help of high accuracy time synchronization, narrow receiver field-of-view and high-repetition-rate pulses (76 MHz), a SNR of better than 16: 1 is obtained, which is sufficient for a secure quantum key distribution. Our experimental results represent an important step towards satellite-ground quantum communication. (C) 2013 Optical Society of America
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics
研究领域[WOS]	Optics
关键词[WOS]	QUANTUM TELEPORTATION ; SPACE
收录类别	SCI
语种	英语
WOS记录号	WOS:000323830500058
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18052]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Univ Sci & Technol China, Shanghai Branch, Natl Lab Phys Sci Microscale, Shanghai 201315, Peoples R China 2.Univ Sci & Technol China, Dept Modern Phys, Shanghai 201315, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Yin, Juan,Cao, Yuan,Liu, Shu-Bin,et al. Experimental quasi-single-photon transmission from satellite to earth[J]. OPTICS EXPRESS,2013,21(17):20032-20040.
APA	Yin, Juan.,Cao, Yuan.,Liu, Shu-Bin.,Pan, Ge-Sheng.,Wang, Jin-Hong.,...&Pan, Jian-Wei.(2013).Experimental quasi-single-photon transmission from satellite to earth.OPTICS EXPRESS,21(17),20032-20040.
MLA	Yin, Juan,et al."Experimental quasi-single-photon transmission from satellite to earth".OPTICS EXPRESS 21.17(2013):20032-20040.