Experimental realization of entanglement in multiple degrees of freedom between two quantum memories

被引：69
|
作者：
Zhang, Wei [1 ,2 ]
Ding, Dong-Sheng [1 ,2 ]
Dong, Ming-Xin [1 ,2 ]
Shi, Shuai [1 ,2 ]
Wang, Kai [1 ,2 ]
Liu, Shi-Long [1 ,2 ]
Li, Yan [1 ,2 ]
Zhou, Zhi-Yuan [1 ,2 ]
Shi, Bao-Sen [1 ,2 ]
Guo, Guang-Can [1 ,2 ]
机构：
[1] Univ Sci & Technol China, CAS, Key Lab Quantum Informat, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China
来源：
NATURE COMMUNICATIONS | 2016年 / 7卷
基金：
中国国家自然科学基金;
关键词：
STORAGE; STATE; COMMUNICATION; GENERATION; PHOTONS;
D O I：
10.1038/ncomms13514
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Entanglement in multiple degrees of freedom has many benefits over entanglement in a single one. The former enables quantum communication with higher channel capacity and more efficient quantum information processing and is compatible with diverse quantum networks. Establishing multi-degree-of-freedom entangled memories is not only vital for high-capacity quantum communication and computing, but also promising for enhanced violations of nonlocality in quantum systems. However, there have been yet no reports of the experimental realization of multi-degree-of-freedom entangled memories. Here we experimentally established hyper- and hybrid entanglement in multiple degrees of freedom, including path (K-vector) and orbital angular momentum, between two separated atomic ensembles by using quantum storage. The results are promising for achieving quantum communication and computing with many degrees of freedom.
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页数：7
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