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arXiv 2303.05474physics.chem-ph
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无序介质中的振动极化激元输运

Vibrational polariton transport in disordered media

Enes Suyabatmaz, Raphael F. Ribeiro

AI总结:

本研究采用Ioffe-Regel判据分析无序介质中振动极化激元的输运,得到不同实验条件下的离域与输运区域,揭示负失谐和强光-物质相互作用利于宏观离域,且低光子权重模式下仍可存在宏观离域与波输运。

摘要:

实验已报道,化学反应与能量输运现象会受到强光-物质相互作用及振动极化激元形成的显著影响。由于光子系统诱导的长程关联,以及物质无序驱动的弹性与非弹性散射过程,这些准粒子表现出非平凡的输运现象。本文中,我们采用Ioffe-Regel(约飞-雷格尔)判据获取振动极化激元的迁移率边,并在光-物质失谐、无序度、相互作用强度等可变实验条件下,识别出不同的离域与输运区域。我们讨论了所得趋势与近期极化激元反应活性效应观测结果的关联,并强调了有机电子激子与振动极化激元输运现象的本质差异。我们的输运相图展示了振动强耦合下输运现象的丰富多样性,表明负失谐与大的光-物质相互作用强度有利于宏观离域。我们还发现了一个令人意外的特征:尽管存在退相诱导的非弹性散射过程,宏观下极化激元的离域与波输运预计在实验中仍能持续存在,即使是在光子权重很小的模式中也是如此。

英文摘要:

Chemical reactions and energy transport phenomena have been experimentally reported to be significantly affected by strong light-matter interactions and vibrational polariton formation. These quasiparticles exhibit nontrivial transport phenomena due to the long-range correlations induced by the photonic system and elastic and inelastic scattering processes driven by matter disorder. In this article, we employ the Ioffe-Regel criterion to obtain vibrational polariton mobility edges and to identify distinct regimes of delocalization and transport under variable experimental conditions of light-matter detuning, disorder, and interaction strength. Correlations between the obtained trends and recent observations of polariton effects on reactivity are discussed, and essential differences between transport phenomena in organic electronic exciton and vibrational polaritons are highlighted. Our transport diagrams show the rich diversity of transport phenomena under vibrational strong coupling and indicate that macroscopic delocalization is favored at negative detuning and large light-matter interaction strength. We also find the surprising feature that, despite the presence of dephasing-induced inelastic scattering processes, macroscopic lower polariton delocalization and wave transport are expected to persist experimentally, even in modes with small photonic weight.

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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