论文标题
与光耦合的非热式合成晶格
Non-Hermitian synthetic lattices with light-matter coupling
论文作者
论文摘要
我们建议可以使用光耦合来实现合成晶格。特别是，我们考虑了一维链中的激子 - 光子位点，以创建一个梳子晶格，该梳子晶格通过调谐依赖于站点的轻度耦合，从而从平坦的频带过渡到有限的质量分散体。此外，在具有增益和损失的非热系统中，平坦带相更加稳健，并且过渡伴随着复杂能谱中特殊点的出现。我们证明，通过在合成晶格中设计光 - 物质耦合，可以探索激光状态中的各个阶段。我们的提议为在更高维度上研究非热系统的系统铺平了道路。
We propose that light-matter coupling can be used to realize synthetic lattices. In particular, we consider a one-dimensional chain of exciton-photon sites to create a comb lattice that exhibits a transition from a flat band to a finite mass dispersion by tuning site-dependent light-matter coupling. Moreover, in a non-Hermitian system with gain and loss, the flat band phase is much more robust and the transition is accompanied by the appearance of exceptional points in the complex energy spectrum. We demonstrate that by engineering the light-matter coupling in the synthetic lattice, one can explore various phases in the lasing regime. Our proposal paves the way for studying non-Hermitian systems in higher dimensions.
