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Conferences > CLEO_FS > 2023 > FM1B > FM1B.8

Topological Flatband States in Corbino-shaped Decorated Honeycomb Lattices

Shenyi Gao, Limin Song, Wenchao Yan, Yichi Wang, Shiqi Xia, Liqin Tang, Daohong Song, Jingjun Xu, and Zhigang Chen

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Abstract

We experimentally demonstrate photonic decorated honeycomb lattices that exhibit two singular flat bands, thereby observing two distinct robust boundary modes in finite-sized lattices in Corbino-geometry which manifest topological noncontractible loop states of an infinite system.

© 2023 The Author(s)

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