46 citations · 140 across the 9 of their papers we have counts for
9 papers
Interplay of electronic crystals with integer and fractional Chern insulators in moiré pentalayer graphene
Dacen Waters, Anna Okounkova, Ruiheng Su +8
The rapid development of moiré quantum matter has recently led to the remarkable discovery of the fractional quantum anomalous Hall effect, and sparked predictions of other novel c…
Topological electronic crystals in twisted bilayer-trilayer graphene
Ruiheng Su, Dacen Waters, Boran Zhou +5
In a dilute two-dimensional electron gas, Coulomb interactions can stabilize the formation of a Wigner crystal. Although Wigner crystals are topologically trivial, it has been pred…
Topological flat bands in a family of multilayer graphene moiré lattices
Dacen Waters, Ruiheng Su, Ellis Thompson +10
Moiré materials host a wealth of intertwined correlated and topological states of matter, all arising from flat electronic bands with nontrivial quantum geometry. A prominent examp…
Non-Abelian and Abelian descendants of vortex spin liquid: fractional quantum spin Hall effect in twisted MoTe
Ya-Hui Zhang
The recent experimental observation of a potential fractional quantum spin Hall (FQSH) state in the twisted MoTe system has sparked theoretical explorations at total filling $ν…
Vortex spin liquid with fractional quantum spin Hall effect in moiré Chern bands
Ya-Hui Zhang
Integer and fractional quantum anomalous Hall (QAH) effects have been widely seen in moiré systems. Recently there is even observation of a time reversal invariant fractional quant…
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…
Phase transitions out of quantum Hall states in moiré materials
Xue-Yang Song, Ya-Hui Zhang, T. Senthil
Motivated by the recent experimental breakthroughs in observing Fractional Quantum Anomalous Hall (FQAH) states in moiré materials, we propose and study various unconventional phas…
Magnetic field stabilized Wigner crystal states in a graphene moiré superlattice
Guorui Chen, Ya-Hui Zhang, Aaron Sharpe +11
Wigner crystals are predicted as the crystallization of the dilute electron gas moving in a uniform background when the electron-electron Coulomb energy dominates the kinetic energ…