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Showing 2024 · cond-mat.mes-hallShow all
3 papers · 2 filters
cond-mat.mes-hall2024★ 1 cited
Higher-order Topological Knots and the classification of non-Hermitian lattices under symmetry
Yifan Wang, Wladimir A. Benalcazar
In two dimensions, Hermitian lattices with non-zero Chern numbers and non-Hermitian lattices with a higher-order skin effect (HOSE) bypass the constraints of the Nielsen-Ninomiya n…
cond-mat.mes-hall2024★ 7 cited
Higher-Order Van Hove Singularities in Kagome Topological Bands
Edrick Wang, Lakshmi Pullasseri, Luiz H. Santos
Motivated by the growing interest in band structures featuring higher-order Van Hove singularities (HOVHS), we investigate a spinless fermion kagome system characterized by nearest…
cond-mat.mes-hall2024★ 12 cited
Higher-order Skin Effect through a Hermitian-non-Hermitian Correspondence and Its Observation in an Acoustic Kagome Lattice
Jia-Xin Zhong, Pedro Fittipaldi de Castro, Tianhong Lu +8
The non-Hermitian skin effect (NHSE) is a distinctive topological phenomenon observed in nonHermitian systems. Recently, there has been considerable interest in exploring higher-or…