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arXiv 2107.07032physics.chem-phphysics.opticsquant-ph
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分子系综中的强光-物质相互作用效应

Strong light-matter interaction effects on molecular ensembles

Raphael F. Ribeiro

摘要:

尽管微腔控制化学过程的潜在范例突破能力,光子器件改变分子材料性质的程度仍然不清楚,部分原因是在许多长度尺度上模拟混合光物质激发的挑战。我们克服了这些挑战下的光子线与分子系综强耦合。我们的模拟提供了一个详细的图片上的光谱和输运性质的无序分子材料的光子线的效果。当腔相对于分子发生红移且能量无序较弱时,我们发现探测到的分子观测值会发生较强的变化。这些趋势预计也将保持在更高的维腔,但没有捕捉到的理论,只包括一个单一的腔模式。因此,我们的研究结果为未来的实验和模型构建提出了重要的问题,这些实验和模型构建的重点是揭示用光学腔操纵化学的新方法。

英文摘要:

Despite the potential paradigm breaking capability of microcavities to control chemical processes, the extent to which photonic devices change properties of molecular materials is still unclear, in part due to challenges in modeling hybrid light-matter excitations delocalized over many length scales. We overcome these challenges for a photonic wire under strong coupling with a molecular ensemble. Our simulations provide a detailed picture of the effect of photonic wires on spectral and transport properties of a disordered molecular material. We find stronger changes to the probed molecular observables when the cavity is redshifted relative to the molecules and energetic disorder is weak. These trends are expected to hold also in higher-dimensional cavities, but are not captured with theories that only include a single cavity-mode. Therefore, our results raise important issues for future experiments and model building focused on unraveling new ways to manipulate chemistry with optical cavities.

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