most citedGeneral corner states in 2D SSH model with intracelluar next-nearest-neighbour hopping

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quant-ph2020★ 32 cited

General corner states in 2D SSH model with intracelluar next-nearest-neighbour hopping

Xun-Wei Xu, Yu-Zeng Li, Zheng-Fang Liu +1

We investigate corner states in a photonic two-dimensional (2D) Su-Schrieffer-Heeger (SSH) model on a square lattice with zero gauge flux. By considering intracelluar next-nearest-…