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cond-mat.mes-hall2023★ 3 cited
A linear algebra-based approach to understanding the relation between the winding number and zero-energy edge states
Chen-Shen Lee
The one-to-one relation between the winding number and the number of robust zero-energy edge states, known as bulk-boundary correspondence, is a celebrated feature of 1d systems wi…
cond-mat.mes-hall2022★ 33 cited
Winding number and Zak phase in multi-band SSH models
Chen-Shen Lee, Iao-Fai Io, Hsien-chung Kao
We use multi-band SSH models to demonstrate a prescription for calculating the correct Zak phase and winding number of multi-band systems. We verify our prescription by comparing t…