3 papers
cond-mat.str-el2026
Hubbard-assisted stability of Hatsugai-Kohmoto correlations in a one-dimensional open chain
Yan-Xiao Wang, Yin Zhong
The Hatsugai-Kohmoto (HK) model has recently been identified as a fixed-point description of Mottness that is stable against perturbing local interactions. This raises a natural qu…
cond-mat.str-el2025
Near-flat-band-driven violation of Pauli limit in heavy fermion superconductors
Yan-Xiao Wang, Yin Zhong
Heavy-fermion superconductors often display upper critical fields that exceed the conventional Pauli paramagnetic limit, indicating that strong correlations and hybridized quasipar…
cond-mat.str-el2025
One-dimensional interacting Su-Schrieffer-Heeger model at quarter filling: An exact diagonalization study
Yan-Xiao Wang, Yin Zhong
This study explores the ground-state phase diagram and topological properties of the spinless 1D Su-Schrieffer-Heeger (SSH) model with nearest-neighbor (NN) interactions at quarter…