Topological non-Hermitian origin of surface Maxwell waves

Topological non-Hermitian origin of surface Maxwell waves

Topological non-Hermitian origin of surface Maxwell waves, Published online: 04 February 2019; doi:10.1038/s41467-019-08397-6

Electromagnetic surface waves, derived from Maxwell theory, underpin many optical effects and applications. Here, Bliokh et al. show that surface waves at interfaces between isotropic media have a topological origin described by the non-Hermitian helicity operator and bulk-boundary correspondence.

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