Holographic Storage of Biphoton Entanglement

被引：60

作者：

Dai, Han-Ning ^{[1
,2
]}

Zhang, Han ^{[1
,2
]}

Yang, Sheng-Jun ^{[1
,2
]}

Zhao, Tian-Ming ^{[1
,2
]}

Rui, Jun ^{[1
,2
]}

Deng, You-Jin ^{[1
,2
]}

Li, Li ^{[1
,2
]}

Liu, Nai-Le ^{[1
,2
]}

Chen, Shuai ^{[1
,2
]}

Bao, Xiao-Hui ^{[1
,2
,3
]}

Jin, Xian-Min ^{[1
,2
]}

Zhao, Bo ^{[1
,2
,4
]}

Pan, Jian-Wei ^{[1
,2
]}

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, D-69120 Heidelberg, Germany

[4] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 21期

基金：

欧洲研究理事会; 奥地利科学基金会; 中国国家自然科学基金;

关键词：

ELECTROMAGNETICALLY INDUCED TRANSPARENCY; QUANTUM MEMORY; LINEAR OPTICS; LIGHT; TOMOGRAPHY; PHOTONS; PULSES;

D O I：

10.1103/PhysRevLett.108.210501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Coherent and reversible storage of multiphoton entanglement with a multimode quantum memory is essential for scalable all-optical quantum information processing. Although a single photon has been successfully stored in different quantum systems, storage of multiphoton entanglement remains challenging because of the critical requirement for coherent control of the photonic entanglement source, multimode quantum memory, and quantum interface between them. Here we demonstrate a coherent and reversible storage of biphoton Bell-type entanglement with a holographic multimode atomic-ensemble-based quantum memory. The retrieved biphoton entanglement violates the Bell inequality for 1 mu s storage time and a memory-process fidelity of 98% is demonstrated by quantum state tomography.

引用

页数：5

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