Quantum telecommunication based on atomic cascade transitions

被引：153

作者：

Chanelière, T ^{[1
]}

Matsukevich, DN ^{[1
]}

Jenkins, SD ^{[1
]}

Kennedy, TAB ^{[1
]}

Chapman, MS ^{[1
]}

Kuzmich, A ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.96.093604

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A quantum repeater at telecommunications wavelengths with long-lived atomic memory is proposed, and its critical elements are experimentally demonstrated using a cold atomic ensemble. Via atomic cascade emission, an entangled pair of 1.53 mu m and 780 nm photons is generated. The former is ideal for long-distance quantum communication, and the latter is naturally suited for mapping to a long-lived atomic memory. Together with our previous demonstration of photonic-to-atomic qubit conversion, both of the essential elements for the proposed telecommunications quantum repeater have now been realized.

引用

页数：4

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