Deterministic photon entangler using a charged quantum dot inside a microcavity

被引：194
|
作者：
Hu, C. Y. [1 ]
Munro, W. J. [2 ,3 ]
Rarity, J. G. [1 ]
机构：
[1] Univ Bristol, Dept Elect & Elect Engn, Bristol BS8 1TR, Avon, England
[2] Hewlett Packard Labs, Bristol BS34 8QZ, Avon, England
[3] Natl Inst Informat, Chiyoda Ku, Tokyo 1018430, Japan
来源：
PHYSICAL REVIEW B | 2008年 / 78卷 / 12期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1103/PhysRevB.78.125318
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a deterministic and scalable scheme to generate photon polarization entanglement via a single electron spin confined in a charged quantum dot inside a microcavity. This scheme is based on giant circular birefringence and giant Faraday rotation induced by a single electron spin. Two independent photons are sequentially sent to the cavity and get entangled after measuring the spin state. We show that this scheme can be extended to generate multiphoton polarization entanglement including Greenberger-Horne-Zeilinger states and cluster states in a deterministic way.
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页数：5
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