Abstract We consider a periodic chain of oscillating dipoles, interacting via long-range dipole–dipole interactions, embedded inside a cuboid cavity waveguide. We show that the mixing between the dipolar excitations and cavity photons into polaritons can lead to the appearance of new states localized at the ends of the dipolar chain, which are reminiscent of Tamm surface states found in electronic systems. A crucial requirement for the formation of polaritonic Tamm states is that the cavity cross section is above a critical size. Above this threshold, the degree of localization of the Tamm states is highly dependent on the cavity size since their participation ratio scales linearly with the cavity cross-sectional area. Our findings may be important for quantum confinement effects in one-dimensional systems with strong light–matter coupling.

中文翻译：

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由腔光子引起的极化 Tamm 态

摘要我们考虑一个周期性的振荡偶极子链，通过长距离偶极子-偶极子相互作用相互作用，嵌入长方体腔波导中。我们表明，偶极激发和腔光子与极化子之间的混合会导致出现在偶极链末端的新状态，这让人想起电子系统中发现的 Tamm 表面状态。形成极化 Tamm 态的一个关键要求是腔横截面高于临界尺寸。在这个阈值之上，Tamm 状态的局部化程度高度依赖于腔尺寸，因为它们的参与率与腔横截面积成线性比例。我们的发现可能对具有强光物质耦合的一维系统中的量子限制效应很重要。