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

被引：125

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.

引用

页数：4