Entangled photons from the biexciton cascade of quantum dots

被引：11
|
作者：
Young, R. J.
Stevenson, R. M.
Shields, A. J.
Atkinson, P.
Cooper, K.
Ritchie, D. A.
机构：
[1] Toshiba Res Europe Ltd, Cambridge CB4 0WE, England
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1063/1.2722765
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Single InAs quantum dots embedded in a planar cavity, formed by mismatched sets of GaAs/AlAs distributed Bragg reflectors, can be a useful source of triggered polarization-entangled photon pairs. We demonstrate this with a fidelity exceeding 70% for the expected entangled state. Quantum dot based devices may therefore be of great use in quantum communications and quantum information processing.
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页数：4
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