6 citations · 9 across the 9 of their papers we have counts for
9 papers
Spin-charge separation in the triangular-lattice Hofstadter-Hubbard model
Yuntian Gu, Hui Yang, Zhehao Dai +1
Recent experiments in moiré materials have enabled the realization of a variety of exotic quantum phases. In this context, the Hofstadter-Hubbard model has been proposed as a possi…
Magnetism and superconductivity in bilayer nickelate
Hui Yang, Ya-Hui Zhang
The discovery of high-temperature superconductivity in bilayer nickelate LaNiO necessitates a minimal theoretical model that unifies the superconducting phase wit…
Doping a spin-one Mott insulator: possible application to bilayer nickelate
Hanbit Oh, Hui Yang, Ya-Hui Zhang
In this article, we review some recent theoretical developments on potential high-temperature superconductors and unconventional metallic states that can arise from doping a spin-o…
Topological incommensurate Fulde-Ferrell-Larkin-Ovchinnikov superconductor and Bogoliubov Fermi surface in rhombohedral tetra-layer graphene
Hui Yang, Ya-Hui Zhang
We performed a random phase approximation (RPA) calculation for a spin-valley polarized model of the rhombohedral tetra-layer graphene to study the possibility of chiral supercondu…
High-temperature superconductivity from kinetic energy
Hanbit Oh, Hui Yang, Ya-Hui Zhang
Superconductivity is usually assumed to arise from attractive interaction. In this work we show that strong pairing is possible soley from kinetic energy even without a net attract…
Strong pairing and symmetric pseudogap metal in double Kondo lattice model: from nickelate superconductor to tetralayer optical lattice
Hui Yang, Hanbit Oh, Ya-Hui Zhang
In this work, we propose and study a double Kondo lattice model which hosts robust superconductivity. The system consists of two identical Kondo lattice model, each with Kondo coup…
Deconfined Fermi liquid to Fermi liquid transition and superconducting instability
Xiaofan Wu, Hui Yang, Ya-Hui Zhang
Deconfined quantum critical points (DQCP) have attracted lots of attentions in the past decades, but were mainly restricted to incompressible phases. On the other hand, various exp…
Fractional quantum anomalous Hall effects in rhombohedral multilayer graphene in the moiréless limit and in Coulomb imprinted superlattice
Boran Zhou, Hui Yang, Ya-Hui Zhang
The standard theoretical framework for fractional quantum anomalous Hall effect (FQAH) assumes an isolated flat Chern band in the single particle level. In this paper we challenges…
Strong pairing from small Fermi surface beyond weak coupling: Application to LaNiO
Hui Yang, Hanbit Oh, Ya-Hui Zhang
The studies of high-temperature superconductors raise a fundamental question: Can a small Fermi surface phase, which violates the Luttinger theorem, exist and give rise to supercon…