标题： 碳纳米管中的一维等离子体和杂化耦合极化子 显示英文标题

标题： One-dimensional Plasmons and Hybridized Coupled Polaritons in Carbon Nanotubes

摘要： 本文提出了针对特定锯齿形碳纳米管（CNTs）的实时含时密度泛函理论（TDDFT）从头计算模拟。通过调整CNTs的长度，我们对Tomonaga-Luttinger（T-L）一维等离子体速度进行了全面分析，证实了与理论预测和实验观测的一致性。我们的研究结果包括在不同共振下激发密度的详细可视化表示。此外，我们探讨了T-L等离子体与单电子激发之间的耦合，识别出不同的1-D极化子行为，例如由于非线性引起的强谐波生成以及与常规二维极化子不同的能量间隙。本研究强调了锯齿形单壁碳纳米管作为低损耗纳米腔谐振器的独特性质，展示了其在强光物质耦合和其他纳米光子器件中的潜在应用。这里采用的模拟框架为复杂纳米结构中的1-D等离子体现象和电子光谱学的进一步研究开辟了途径。 显示英文摘要

摘要： This paper presents real-time time-dependent density functional theory (TDDFT) ab-initio simulations of selected armchair carbon nanotubes (CNTs). By scaling the lengths of CNTs, we provide a comprehensive analysis of the Tomonaga-Luttinger (T-L) 1-D plasmon velocities, confirming consistency with theoretical predictions and experimental observations. Our findings include detailed visual representations of excitation densities at various resonances. Furthermore, we explore the coupling between T-L plasmons and single electron excitations, identifying distinct 1-D polariton behaviors, such as strong harmonic generation due to nonlinearities, as well as energy gaps that differ from conventional 2-D polaritons. The study highlights the unique properties of armchair SWCNTs as low-loss nanocavity resonators, demonstrating potential applications in strong light-matter coupling and other nanophotonic devices. The simulation framework employed here opens avenues for further research into 1-D plasmonic phenomena and electronic spectroscopy in complex nanostructures.