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Deterministic and storable single-photon source based on a quantum memory

被引：123
作者：
Chen, Shuai
Chen, Yu-Ao
Strassel, Thorsten
Yuan, Zhen-Sheng
Zhao, Bo
Schmiedmayer, Joerg
Pan, Jian-Wei
机构：
[1] Univ Heidelberg, Inst Phys, D-69120 Heidelberg, Germany
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
[3] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[4] Tech Univ Vienna, Inst Atom, A-1020 Vienna, Austria
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 17期
关键词：
ATOMIC ENSEMBLES; LINEAR OPTICS; COMMUNICATION; GENERATION; LIGHT; DOT;
D O I：
10.1103/PhysRevLett.97.173004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A single-photon source is realized with a cold atomic ensemble (Rb-87 atoms). A single excitation, written in an atomic quantum memory by Raman scattering of a laser pulse, is retrieved deterministically as a single photon at a predetermined time. It is shown that the production rate of single photons can be enhanced considerably by a feedback circuit while the single-photon quality is conserved. Such a single-photon source is well suited for future large-scale realization of quantum communication and linear optical quantum computation.
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页数：4
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