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Topological Anderson phase in quasi-periodic waveguide lattices

arXiv
Authors: Stefano Longhi

Year

2020

Paper ID

21466

Status

Preprint

Abstract Read

~2 min

Abstract Words

100

Citations

N/A

Abstract

The topological trivial band of a lattice can be driven into a topological phase by disorder in the system. This so-called topological Anderson phase has been predicted and observed for uncorrelated static disorder, while in the presence of correlated disorder conflicting results are found. Here we consider a Su-Schrieffer-Heeger (SSH) waveguide lattice in the trivial topological phase, and show that quasi-periodic disorder in the coupling constants can drive the lattice into a topological non-trivial phase. A method to detect the emergence of the topological Anderson phase, based on light dynamics at the edge of a quasi-periodic waveguide lattice, is suggested.

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  • The topological trivial band of a lattice can be driven into a topological phase by disorder in the system.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2008.06493 [2] arXiv https://arxiv.org/abs/2008.06493 [3] Publisher https://arxiv.org/abs/2008.06493

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