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Topological Quantum Computing Open Quantum Systems Decoherence Quantum Simulation

Coexistence of dipolar and quadrupolar higher-order topology

arXiv

Authors: Konstantin Rodionenko, Maxim Mazanov, Maxim A. Gorlach

Year

2026

Paper ID

67903

Status

Preprint

Abstract Read

~2 min

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Abstract

Two-dimensional higher-order topological insulators are typically classified either as dipolar or quadrupolar depending on the relevant invariant. These two classes were previously considered non-overlapping. Here we put forward an example system exhibiting dipolar and quadrupolar higher-order topology simultaneously, suggest its implementation using the arrays of laser-written evanescently coupled optical waveguides and support our conclusions by the full-wave numerical simulations.

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Two-dimensional higher-order topological insulators are typically classified either as dipolar or quadrupolar depending on the relevant invariant.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2606.03950 [2] arXiv https://arxiv.org/abs/2606.03950 [3] Publisher https://arxiv.org/abs/2606.03950

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External citation index: OpenAlex citation signal • updated 2026-06-11 02:57:23

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