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arXiv 1508.01637quant-phcond-mat.other
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量子点的腔增强相干光散射

Cavity-enhanced coherent light scattering from a quantum dot

A. J. Bennett, J. P. Lee, D. J. P. Ellis, T. Meany, E. Murray, F. Floether, J. P. Griffths, I. Farrer, D. A. Ritchie, A. J. Shields

摘要:

宏观腔中原子和离子的共振激发导致对光量子的特殊控制。通过微腔中的发射体将这些优势转化为固态,有望在信息处理和计量领域实现革命性的量子技术。关键是从发射极-谐振腔系统进行谐振光学读写。然而,人们普遍认为,来自微制造波长大小的腔的谐振激光的反射将主导任何量子信号。在这里,我们演示了相干光子散射的量子点在微柱。腔被示出为增强光的分数,其被共振地散射朝向统一,产生反聚束不可区分的光子的因子为16超出时间带宽限制,即使当过渡接近饱和。最后,利用确定性激发产生了双光子N 00 N态,并在光子电路中进行了超分辨相位测量。

英文摘要:

Resonant excitation of atoms and ions in macroscopic cavities has lead to exceptional control over quanta of light. Translating these advantages into the solid state with emitters in microcavities promises revolutionary quantum technologies in information processing and metrology. Key is resonant optical reading and writing from the emitter-cavity system. However, it has been widely expected that the reflection of a resonant laser from a micro-fabricated wavelength-sized cavity would dominate any quantum signal. Here we demonstrate coherent photon scattering from a quantum dot in a micro-pillar. The cavity is shown to enhance the fraction of light which is resonantly scattered towards unity, generating anti-bunched indistinguishable photons a factor of 16 beyond the time-bandwidth limit, even when the transition is near saturation. Finally, deterministic excitation is used to create 2-photon N00N states with which we make super-resolving phase measurements in a photonic circuit.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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