# Bulk-edge correspondence for topological photonic continua

@article{Silveirinha2016BulkedgeCF, title={Bulk-edge correspondence for topological photonic continua}, author={M{\'a}rio G. Silveirinha}, journal={Physical Review B}, year={2016}, volume={94}, pages={205105} }

Here, building on our previous work [Phys. Rev. B 92, 125153 (2015)], it is shown that the propagation of unidirectional gapless edge states at an interface of two topologically distinct electromagnetic continua with a well-behaved asymptotic electromagnetic response is rigorously predicted by the bulk-edge correspondence principle. We work out detailed examples demonstrating that when the spatial cutoff of the nonreciprocal part of the material response is considered self-consistently in the…

## 78 Citations

### Physical Violations of the Bulk-Edge Correspondence in Topological Electromagnetics.

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The correspondence principle is physically violated for all practical purposes, as a result of the unavoidable attenuation of highly confined modes even if all materials are assumed perfect, with zero intrinsic bulk losses, due to confinement-induced Landau damping or nonlocality-induced radiation leakage.

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We investigate spontaneous and pumped entanglement of two-level systems in the vicinity of a photonic topological insulator interface, which supports a nonreciprocal (unidirectional),…

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