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Optical coupling of two distant InAs/GaAs quantum dots by a photonic-crystal microcavity

机译:光子晶体微腔对两个相距较远的InAs / GaAs量子点的光耦合

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摘要

Long distance (1.4 μm) interaction of two different InAs/GaAs quantum dots in a photonic crystal micro-cavity is observed. Simultaneous coupling of both quantum dots to the cavity is demonstrated by Purcell effect measurements. Resonant optical excitation in the p state of any of the quantum dots, results in an increase in the s-state emission of the other one. The cavity-mediated coupling can be controlled by varying the excitation intensity. These results represent an experimental step toward the realization of quantum logic operations using distant solid-state qubits.
机译:在光子晶体微腔中观察到两个不同的InAs / GaAs量子点的长距离(1.4μm)相互作用。珀塞尔效应测量证明了两个量子点同时耦合到腔上。任何一个量子点在p状态下的共振光激发都会导致另一个量子点的s状态发射增加。腔介导的耦合可以通过改变激发强度来控制。这些结果代表了使用遥远的固态量子位实现量子逻辑运算的实验性步骤。

著录项

  • 来源
    《Physical review》 |2010年第19期|P.193301.1-193301.4|共4页
  • 作者单位

    Departamento de Fisica de Materiales. Universidad Autonoma de Madrid, E-28049 Madrid, Spain;

    Instituto de Microelectronica de Madrid, Centra National de Microelectronica, Consejo Superior de Investigaciones Cientificas, Isaac Newton 8, PTM Tres Cantos, E-28760 Madrid, Spain;

    Departamento de Fisica de Materiales. Universidad Autonoma de Madrid, E-28049 Madrid, Spain;

    Departamento de Fisica de Materiales. Universidad Autonoma de Madrid, E-28049 Madrid, Spain Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom;

    Departamento de Fisica de Materiales. Universidad Autonoma de Madrid, E-28049 Madrid, Spain;

    Departamento de Fisica de Materiales. Universidad Autonoma de Madrid, E-28049 Madrid, Spain;

    Departamento de Fisica de Materiales. Universidad Autonoma de Madrid, E-28049 Madrid, Spain;

    Instituto de Microelectronica de Madrid, Centra National de Microelectronica, Consejo Superior de Investigaciones Cientificas, Isaac Newton 8, PTM Tres Cantos, E-28760 Madrid, Spain;

    Instituto de Microelectronica de Madrid, Centra National de Microelectronica, Consejo Superior de Investigaciones Cientificas, Isaac Newton 8, PTM Tres Cantos, E-28760 Madrid, Spain;

    Instituto de Microelectronica de Madrid, Centra National de Microelectronica, Consejo Superior de Investigaciones Cientificas, Isaac Newton 8, PTM Tres Cantos, E-28760 Madrid, Spain;

    Instituto de Microelectronica de Madrid, Centra National de Microelectronica, Consejo Superior de Investigaciones Cientificas, Isaac Newton 8, PTM Tres Cantos, E-28760 Madrid, Spain;

    Instituto de Microelectronica de Madrid, Centra National de Microelectronica, Consejo Superior de Investigaciones Cientificas, Isaac Newton 8, PTM Tres Cantos, E-28760 Madrid, Spain;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    quantum dots; quantum wells;

    机译:量子点;量子阱;

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