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Conferences > FiO > 2022 > JW5A > JW5A.31

Photonic quadrupole topological insulator using orbital-induced synthetic flux

Julian Schulz, Jiho Noh, Wladimir A. Benalcazar, Gaurav Bahl, and Georg von Freymann

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Abstract

We demonstrate that mixing orbitals of different symmetry representations can induce synthetic π-flux threading the lattice. As an experimental demonstration of such a concept, we realize a photonic quadrupole topological insulator in a two-dimensional photonic lattice.

© 2022 The Author(s)

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