Observation of the modification of quantum statistics of plasmonic systems.
Observation of the modification of quantum statistics of plasmonic systems.
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DOI：
10.1038/s41467-021-25489-4
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发表时间：
2021-08-27
影响因子：
16.6
通讯作者：
Magaña-Loaiza OS
中科院分区：
文献类型：
--
作者：
You C;Hong M;Bhusal N;Chen J;Quiroz-Juárez MA;Fabre J;Mostafavi F;Guo J;De Leon I;León-Montiel RJ;Magaña-Loaiza OS
近二十年来，研究人员已经观察到玻色子在各种等离子体系统中保持量子统计特性。此外，在由光子和等离子体之间的散射介导的光-物质相互作用中保持非经典相关性的可能性刺激了等离子体系统中量子统计守恒的想法。人们还假设，类似的动力学是定义光源性质的量子涨落守恒的基础。到目前为止，等离子体实验已经在纳米级系统中进行，其中复杂的多粒子相互作用受到限制。在这里，我们证明了多粒子系统的量子统计并不总是在等离子体平台中保存，并报告了它们的修改观察。此外，我们表明，光学近场提供了额外的散射路径，可以诱导复杂的多粒子相互作用。值得注意的是，由此产生的多粒子动力学可以反过来导致等离子体系统激发模式的改变。这些观测结果通过单模和多模等离子体系统的光学相干量子理论得到了验证。我们的发现揭示了利用多粒子散射对量子等离子体系统进行精细控制的可能性。到目前为止，实验结果支持一个经常未说明的假设，即多粒子系统的量子统计特性在等离子体平台中保持不变。在这里，作者展示了光子等离子体散射中的多粒子干涉如何改变等离子体系统的激发模式。
For almost two decades, researchers have observed the preservation of the quantum statistical properties of bosons in a large variety of plasmonic systems. In addition, the possibility of preserving nonclassical correlations in light-matter interactions mediated by scattering among photons and plasmons stimulated the idea of the conservation of quantum statistics in plasmonic systems. It has also been assumed that similar dynamics underlie the conservation of the quantum fluctuations that define the nature of light sources. So far, plasmonic experiments have been performed in nanoscale systems in which complex multiparticle interactions are restrained. Here, we demonstrate that the quantum statistics of multiparticle systems are not always preserved in plasmonic platforms and report the observation of their modification. Moreover, we show that optical near fields provide additional scattering paths that can induce complex multiparticle interactions. Remarkably, the resulting multiparticle dynamics can, in turn, lead to the modification of the excitation mode of plasmonic systems. These observations are validated through the quantum theory of optical coherence for single- and multi-mode plasmonic systems. Our findings unveil the possibility of using multiparticle scattering to perform exquisite control of quantum plasmonic systems. So far, experimental results have favoured the often unstated assumption that quantum statistical properties of multiparticle systems are preserved in plasmonic platforms. Here, the authors show how multiparticle interference in photon-plasmon scattering can modify the excitation mode of plasmonic systems.
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