3 citations · 3 across the 3 of their papers we have counts for
4 papers
Topological Transverse Transport without a Gap in Critical Topological Flat Bands
Chang-geun Oh, Tomoki Ozawa, Jun-Won Rhim
Quantized Hall transport is traditionally anchored to a bulk spectral gap, which isolates the occupied subspace and exponentially suppresses thermal deviations. Recently discovered…
Classification of Non-Hermitian Flat Bands
Chang-geun Oh, Jun-Won Rhim
Exact flat bands provide a versatile setting for correlated and topological phenomena, yet their properties are controlled not only by their dispersion but also by the structure of…
General construction scheme for geometrically nontrivial flat band models
Hyeongseop Kim, Chang-geun Oh, Jun-Won Rhim
A singular flat band(SFB), a distinct class of the flat band, has been shown to exhibit various intriguing material properties characterized by a geometric quantity of the Bloch wa…
Symmetry-Protected Solitons and Bulk-Boundary Correspondence in Generalized Jackiw-Rebbi Models
Chang-geun Oh, Sang-Hoon Han, Sangmo Cheon
We investigate the roles of symmetry and bulk-boundary correspondence in characterizing topological edge states in generalized Jackiw-Rebbi (JR) models. We show that time-reversal…