23 citations · 56 across the 16 of their papers we have counts for
13 papers · 1 filter
Spectroscopy of phonon-coupled integer and fractional Chern insulators: emergence of polarons and chirality deficit of graviton mode
Min Long, Yuzhu Wang, Zi Yang Meng
Strong electron-phonon coupling can destabilize both Chern insulators (CIs) and fractional Chern insulators (FCIs) in favor of charge order, but whether the instabilities in CI and…
Many-Anyon Braiding in Non-Abelian Fractional Quantum Hall Effect with Hybrid Monte Carlo Simulation
Ting-Tung Wang, Ha Quang Trung, Qianhui Xu +3
We employ the hybrid Monte Carlo method to efficiently compute the many-anyon non-Abelian braiding matrices associated with different braiding schemes of the Moore-Read quasiholes.…
Chiral Graviton Modes in Fermionic Fractional Chern Insulators
Min Long, Zeno Bacciconi, Hongyu Lu +3
Chiral graviton modes are hallmark collective excitations of Fractional Quantum Hall (FQH) liquids. However, their existence on the lattice, where continuum symmetries that protect…
Probing Non-Fermi-Liquid Behaviour of Composite Fermi Liquid via Efficient Thermal Simulations
Bin-Bin Chen, Hongyu Lu, Zi Yang Meng
The physics of two-dimensional electron gas in a perpendicular magnetic field, i.e., the quantum Hall system, is remarkably rich. At half filling of the lowest Landau level, it has…
Interaction-induced nematic Dirac semimetal from quadratic band touching: A constrained-path quantum Monte Carlo study
Zi Hong Liu, Hongyu Lu, Zi Yang Meng +1
Electronic systems with quadratic band touchings, commonly found in two- and three-dimensional materials such as Bernal-stacked bilayer graphene, kagome metals, HgTe, and pyrochlor…
Generic integer and fractional quantum anomalous Hall crystals from interaction-driven band folding
Hongyu Lu, Han-Qing Wu, Bin-Bin Chen +2
Among the extensive studies of fractional quantum anomalous Hall (FQAH) states, there recently appears a growing interest in the topological states with coexisting charge density w…
Spectra of Magnetoroton and Chiral Graviton Modes of Fractional Chern Insulator
Min Long, Hongyu Lu, Han-Qing Wu +1
Employing the state-of-the-art time-dependent variational principle (TDVP) algorithm, we compute the spectra of charge-neutral excitations in the (bosonic) \updated{ and $1…
Continuous Transition between Bosonic Fractional Chern Insulator and Superfluid
Hongyu Lu, Han-Qing Wu, Bin-Bin Chen +1
The properties of fractional Chern insulator (FCI) phases and the phase transitions between FCI and Mott insulators (MI) in bosonic systems are well studied. The continuous transit…
Continuous transition and gapless roton inside fractional quantum anomalous Hall states
Hongyu Lu, Han-Qing Wu, Bin-Bin Chen +1
Collective excitations play a vital role in understanding the exotic phases of matter and phase transitions in quantum many-body systems. For the first time, we numerically (via ex…
Interaction-driven Roton Condensation in C = 2/3 Fractional Quantum Anomalous Hall State
Hongyu Lu, Han-Qing Wu, Bin-Bin Chen +2
The interplay of topological order and charge order exhibits rich physics. Recent experiments that succesfully realized the frational quantum anomalous Hall (FQAH) effect in twiste…
From Fractional Quantum Anomalous Hall Smectics to Polar Smectic Metals: Nontrivial Interplay Between Electronic Liquid Crystal Order and Topological Order in Correlated Topological Flat Bands
Hongyu Lu, Han-Qing Wu, Bin-Bin Chen +2
Symmetry-breaking orders can not only compete with each other, but also be interwined, and the interwined topological and symmetry-breaking orders make the situation more intriguin…
Thermodynamic Response and Neutral Excitations in Integer and Fractional Quantum Anomalous Hall States Emerging from Correlated Flat Bands
Hongyu Lu, Bin-Bin Chen, Han-Qing Wu +2
Integer and fractional Chern insulators have been extensively explored in correlated flat band models. Recently, the prediction and experimental observation of fractional quantum a…
Direct observation of fragile Mott insulators on plaquette Hubbard lattices
Han-Qing Wu, Rong-Qiang He, Zi Yang Meng +1
Employing extensive cellular dynamical mean-field theory (CDMFT) calculations with exact diagonalization impurity solver, we investigate the ground state phase diagrams and non-mag…