Conditional preparation of high-fidelity single-photon wavepackets

被引：0

作者：

U'Ren, AB ^{[1
]}

Silberhorn, C ^{[1
]}

Banaszek, K ^{[1
]}

Ball, J ^{[1
]}

Achilles, D ^{[1
]}

Walmsley, IA ^{[1
]}

机构：

[1] Univ Oxford, Clarendon Lab, Oxford OX1 3BU, England

来源：

QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING | 2004年 / 734卷

关键词：

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The reliable generation of true single-photon wavepackets with well-defined modal structure is a crucial ingredient for the realization of linear optical quantum computing. We have implemented a highly efficient waveguided parametric downconversion source pumped by ultrashort pulses, which is characterized by the spatial decoupling of the signal and idler photon while exhibiting a conditional detection efficiency of 51%, corresponding to a preparation efficiency of 85%. We have performed various tests to confirm the single-photon character of the conditionally prepared state.

引用

页码：358 / 361

页数：4

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