Surface plasmons in a metal nanowire coupled to colloidal quantum dots: Scattering properties and quantum entanglement

被引：125
作者：
Chen, Guang-Yin [1 ,2 ,3 ]
Lambert, Neill [3 ]
Chou, Chung-Hsien [1 ,2 ]
Chen, Yueh-Nan [1 ,2 ]
Nori, Franco [3 ,4 ]
机构：
[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Natl Ctr Theoret Sci, Tainan 701, Taiwan
[3] RIKEN, Adv Sci Inst, Wako, Saitama 3510198, Japan
[4] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
来源：
PHYSICAL REVIEW B | 2011年 / 84卷 / 04期
基金：
美国国家科学基金会;
关键词：
2 SUPERCONDUCTING QUBITS; SPONTANEOUS EMISSION; TRANSISTOR; EXCITATION; STATE;
D O I：
10.1103/PhysRevB.84.045310
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate coherent single surface-plasmon transport in a metal nanowire strongly coupled to two colloidal quantum dots. Analytical expressions are obtained for the transmission and reflection coefficients by solving the corresponding eigenvalue equation. Remote entanglement of the wave functions of the two quantum dots can be created if the interdot distance is equal to a multiple half-wavelength of the surface plasmon. Furthermore, by applying classical laser pulses to the quantum dots, the entangled states can be stored in metastable states that are decoupled from the surface plasmons.
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页数：7
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