Modified spontaneous emission and qubit entanglement from dipole-coupled quantum dots in a photonic crystal nanocavity

被引：56
|
作者：
Hughes, S [1 ]
机构：
[1] NTT Corp, NTT Basic Res Labs, Kanagawa 2430198, Japan
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.94.227402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The modified spontaneous emission dynamics of two photon-coupled quantum dots in a planar-photonic crystal are theoretically investigated. Based on a photon Green function technique for quantizing the electromagnetic fields in arbitrary surroundings, pronounced vacuum Rabi oscillations and dipole-dipole interactions are self-consistently incorporated and are shown to result in a high degree of quantum-bit entanglement. Quantum dots with different optical dipole moments are also found to yield a very rich display of quantum dynamics and offer several advantages over coupling identical atoms.
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页数：4
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