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cond-mat.mes-hall2023★ 4 cited
Model non-Hermitian topological operators without skin effect: A general principle of construction
Daniel J. Salib, Sanjib Kumar Das, Bitan Roy
We propose a general principle of constructing non-Hermitian (NH) operators for insulating and gapless topological phases in any dimension () that over an extended NH parameter…
cond-mat.mes-hall2023★ 6 cited
Emergent metallicity at the grain boundaries of higher-order topological insulators
Daniel J. Salib, Vladimir Juričić, Bitan Roy
Topological lattice defects, such as dislocations and grain boundaries (GBs), are ubiquitously present in the bulk of quantum materials and externally tunable in metamaterials. In…