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Enhancement of Second-Order Non-Hermitian Skin Effect by Magnetic Fields
Chang-An Li, Björn Trauzettel, Titus Neupert +1
The non-Hermitian skin effect is a unique phenomenon in which an extensive number of eigenstates are localized at the boundaries of a non-Hermitian system. Recent studies show that…
Theory of Glide Symmetry Protected Helical Edge States in WTe Monolayer
Maciej Bieniek, Jukka I. Väyrynen, Gang Li +2
Helical edge states in quantum spin Hall (QSH) materials are central building blocks of topological matter design and engineering. Despite their principal topological protection ag…
Interaction effects in a 1D flat band at a topological crystalline step edge
Glenn Wagner, Souvik Das, Johannes Jung +11
Step edges of topological crystalline insulators can be viewed as predecessors of higher-order topology, as they embody one-dimensional edge channels embedded in an effective three…
Interacting topological quantum chemistry of Mott atomic limits
Martina O. Soldini, Nikita Astrakhantsev, Mikel Iraola +6
Topological quantum chemistry (TQC) is a successful framework for identifying (noninteracting) topological materials. Based on the symmetry eigenvalues of Bloch eigenstates at maxi…
Weak-signal extraction enabled by deep-neural-network denoising of diffraction data
Jens Oppliger, M. Michael Denner, Julia Küspert +20
Removal or cancellation of noise has wide-spread applications for imaging and acoustics. In every-day-life applications, denoising may even include generative aspects, which are un…
Topological Zero-Dimensional Defect and Flux States in Three-Dimensional Insulators
Frank Schindler, Stepan S. Tsirkin, Titus Neupert +2
In insulating crystals, it was previously shown that defects with two fewer dimensions than the bulk can bind topological electronic states. We here further extend the classificati…