标题： 等离激元纳米腔中的集体多模强耦合 显示英文标题

标题： Collective multimode strong coupling in plasmonic nanocavities

摘要： 等离子纳米腔使人们能够探索物质的量子特性，但通常被简化为单模模型，尽管它们具有复杂的多模结构。 在这里，我们表明非共振等离子模式实际上在强耦合中起着关键作用，并决定了新型集体相互作用的开始。 我们的分析显示，$n$强耦合的等离子模式引入了多达$n(n+1)/2$的振荡频率，这些频率取决于它们的耦合强度和与量子发射器的失谐程度。 此外，随着耦合强度的增加，我们识别出三个不同的区域：(1) 单模，(2) 多模，(3) 集体多模强耦合。 我们的发现增强了对现实等离子环境中量子动力学的理解，并展示了它们在光驱动量子技术中实现超快能量转移的潜力。 显示英文摘要

摘要： Plasmonic nanocavities enable access to the quantum properties of matter, but are often simplified to single mode models despite their complex multimode structure. Here, we show that off-resonant plasmonic modes in fact play a crucial role in strong coupling, and determine the onset of a novel collective interaction. Our analysis reveals that $n$ strongly coupled plasmonic modes, introduce up to $n(n+1)/2$ oscillation frequencies that depend on their coupling strengths and detunings from the quantum emitter. Furthermore, we identify three distinct regions as the coupling strength increases: (1) single mode, (2) multimode, and (3) collective multimode strong coupling. Our findings enhance the understanding of quantum dynamics in realistic plasmonic environments and demonstrate their potential to achieve ultra-fast energy transfer in light-driven quantum technologies.