论文标题

PT对称Su-Schrieffer-Heeger模型的拓扑边缘型:有效的两态描述

Topological edge-states of the PT-symmetric Su-Schrieffer-Heeger model: An effective two-state description

论文作者

Tzortzakakis, A. F., Katsaris, A., Palaiodimopoulos, N. E., Kalozoumis, P. A., Theocharis, G., Diakonos, F. K., Petrosyan, D.

论文摘要

我们考虑了拓扑非平凡配置中一维su-schrieffer-heeger(SSH)模型的非平均平均时间(PT)对称扩展。我们研究了拓扑保护的边缘状态的特性,并对系统的有效的两态分析描述进行了有效的两态分析描述,以准确预测边缘状态的PT对称性断裂点。我们通过精确的数值计算来验证我们的分析结果。

We consider the non-Hermitian, parity-time (PT) symmetric extensions of the one-dimensional Su-Schrieffer-Heeger (SSH) model in the topological non-trivial configuration. We study the properties of the topologically protected edge states, and develop an effective two-state analytical description of the system that accurately predicts the PT-symmetry breaking point for the edge states. We verify our analytical results by exact numerical calculations.

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