2 papers
cond-mat.str-el2026
Emergent low-energy many-body Hilbert spaces in Chern bands
Chen-Xin Jiang, Zi-Xiang Hu, Bo Yang
We show that in Landau levels and more generic Chern bands, the most relevant many-body subspace selected by realistic two-body interactions alone (e.g., in the limit of vanishing…
cond-mat.str-el2024
Flat bands on spherical surface: from Landau levels to giant-quantum-number orbitals
Chen-Xin Jiang, Zi-Xiang Hu, Bo Yang
Flat bands result in a divergent density of states and high sensitivity to interactions in physical systems. While such bands are well known in systems under magnetic fields, their…