84 citations · 162 across the 15 of their papers we have counts for
15 papers
Quantum-Geometric Design of Lattice Generalized Landau Levels
Bohao Li, Fengcheng Wu
We design lattice models with tailored quantum geometry, including generalized Landau levels (LLs) satisfying the integrated trace condition and higher-Chern bands with ideal quant…
Observation of a Reconstructed Chern Insulator in Twisted Bilayer MoTe2
Min Wu, Lingxiao Li, Yunze Ouyang +12
Twisted bilayer MoTe2 is a prototypical moire material in which long-wavelength superlattices amplify electron correlations, enabling a wealth of emergent quantum phases. To date,…
Abelian and non-Abelian fractionalized states in twisted MoTe: A generalized Landau-level theory
Bohao Li, Yunze Ouyang, Fengcheng Wu
Fractional Chern insulators are lattice analogs of fractional quantum Hall states that realize fractionalized quasiparticles without an external magnetic field. A key strategy to u…
Quantum Phases in Twisted Homobilayer Transition Metal Dichalcogenides
Bohao Li, Wen-Xuan Qiu, Fengcheng Wu +1
Twisted homobilayer transition metal dichalcogenides - specifically twisted bilayer MoTe and twisted bilayer WSe - have recently emerged as a versatile platform for strongl…
Characterization of fractional Chern insulator quasiparticles in twisted homobilayer MoTe
Zhao Liu, Bohao Li, Yuhao Shi +1
We provide a detailed study of Abelian quasiparticles of valley polarized fractional Chern insulators (FCIs) residing in the top valence band of twisted bilayer MoTe (tMoTe…
Electrical switching of Chern insulators in moire rhombohedral heptalayer graphene
Zhiyu Wang, Qianling Liu, Xiangyan Han +14
In orbital Chern insulators, the chemical potential acts as a tuning knob to reverse chirality in dissipationless edge currents, enabling electric-field control of magnetic order-k…
Deep Learning Sheds Light on Integer and Fractional Topological Insulators
Xiang Li, Yixiao Chen, Bohao Li +4
Electronic topological phases of matter, characterized by robust boundary states derived from topologically nontrivial bulk states, are pivotal for next-generation electronic devic…
Topological magnons and domain walls in twisted bilayer MoTe
Wen-Xuan Qiu, Fengcheng Wu
We theoretically investigate the magnetic excitations in the quantum anomalous Hall insulator phase of twisted bilayer MoTe at a hole filling factor of , focusing on magno…
Visualization of intervalley coherent phase in PtSe2/HOPG heterojunction
Kai Fan, Bohao Li, Wen-Xuan Qiu +7
Intervalley coherent (IVC) phase in graphene systems arises from the coherent superposition of wave functions of opposite valleys, whose direct microscopic visualization provides p…
Quantized Landau-level crossing checkerboard in large-angle twisted graphene
Baojuan Dong, Kai Zhao, Kenji Watanabe +6
When charge transport occurs under conditions like topological protection or ballistic motion, the conductance of low-dimensional systems often exhibits quantized values in units o…
Topological Chiral Superconductivity Mediated by Intervalley Antiferromagnetic Fluctuations in Twisted Bilayer WSe
Wei Qin, Wen-Xuan Qiu, Fengcheng Wu
Motivated by the recent observations of superconductivity in twisted bilayer WSe (tWSe), we theoretically investigate the superconductivity driven by electronic mechanism.…
Observation of Ferromagnetic Phase in the Second Moiré Band of Twisted MoTe2
Liheng An, Haiyang Pan, Wen-Xuan Qiu +13
Flat bands and electron correlation in moiré lattices give rise to many exotic phases, including Mott insulators, superconductivity, and topological states. Within the first moiré…
Quantum Geometry Probed by Chiral Excitonic Optical Response of Chern Insulators
Wen-Xuan Qiu, Fengcheng Wu
We theoretically derive the sum rule for the negative first moment of the absorptive optical conductivity with excitonic effects and establish its connection to the quantum weight…
Tunable superconductivity in electron- and hole-doped Bernal bilayer graphene
Chushan Li, Fan Xu, Bohao Li +11
Graphene-based, high quality two-dimensional electronic systems have emerged as a highly tunable platform for studying superconductivity. Specifically, superconductivity has been o…
Variational Mapping of Chern Bands to Landau Levels: Application to Fractional Chern Insulators in Twisted MoTe
Bohao Li, Fengcheng Wu
We present a theoretical study of mapping between Chern bands and generalized Landau levels in twisted bilayer MoTe (MoTe), where fractional Chern insulators down to zer…