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arXiv · 2106.00729

Edge state dynamics along curved interfaces

Guillaume Bal·Simon Becker·Alexis Drouot·Clotilde Fermanian Kammerer·Jianfeng Lu·Alexander Watson
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Abstract

We study the propagation of wavepackets along weakly curved interfaces between topologically distinct media. Our Hamiltonian is an adiabatic modulation of Dirac operators omnipresent in the topological insulators literature. Using explicit formulas for straight edges, we construct a family of solutions that propagates, for long times, unidirectionally and dispersion-free along the curved edge. We illustrate our results through various numerical simulations.

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Guillaume Bal, Simon Becker, Alexis Drouot, Clotilde Fermanian Kammerer, Jianfeng Lu, Alexander Watson. 2021-06-01. Edge state dynamics along curved interfaces. https://arxiv.org/abs/2106.00729

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