报告人：刘平 研究员（浙江大学）

时间：2026年04月10日 15:00-

地点：理科楼LA104

摘要：This presentation studies the non-Hermitian skin effect and topological interface modes in one-dimensional subwavelength resonator arrays. The non-Hermitian skin effect, where most eigenmodes become exponentially localized at one boundary, is rigorously demonstrated and linked to a topological winding number via the spectral theory of Toeplitz operators. For systems with a structural defect (SSH-type geometry), the existence of robust interface modes within a bandgap is proven, with explicit formulas for their frequencies and exponential convergence properties. Stability analyses under geometric perturbations are also provided.

邀请人：数学研究中心

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