30 citations · 48 across the 16 of their papers we have counts for
16 papers
Universality of Energy-Space Entanglement in Quantum Impurity Models
Geng-Dong Zhou, Zhi-Da Song
Entanglement entropy (EE) is commonly studied using real-space bipartitions. We show that, in quantum impurity models, an energy-space bipartition, equivalent to the momentum-space…
Field-induced asymmetric band flattening and ideal quantum geometry in rhombohedral graphene
Hongyun Zhang, Jinxi Lu, Size Wu +17
Rhombohedral graphene exhibits an exceptionally diverse array of correlated phases that depend sensitively on the displacement field. Compiling reported phases into a unified phase…
Chern number reversal and emergent superconductivity in rhombohedral graphene induced by in-plane magnetic fields
Xiaozhou Zan, Hangzhe Li, Jiawei Guo +11
Rhombohedral graphene with topological flat bands offers an ideal platform for realizing correlated and topological quantum phases. Here we investigate hBN aligned eight-layer rhom…
Strongly Correlated Superconductivity in Twisted Bilayer Graphene: a Gutzwiller Study
Matthew Shu Liang, Yi-Jie Wang, Geng-Dong Zhou +2
We study strongly correlated superconductivity in magic-angle twisted bilayer graphene (MATBG) using a variational Gutzwiller wavefunction $\ket{Ψ_G} = \prod_{\vb{R}} \hat{P}_{\vb{…
Entangled Moire Chern Insulator in Rhombohedral Graphene
Zaizhe Zhang, Xi Chen, Kenji Watanabe +3
Graphene-based moire superlattices exhibit novel quantum phenomena driven by pronounced interactions, leading to topological corrected states like orbital Chern insulators exhibiti…
Fractional High-Chern Insulator in Twisted Rhombohedral Graphene
Zexu Li, Wenxuan Wang, Fajie Wang +9
The realization of fractional Chern insulators opens up the possibility of exploring fractionally charged excitations and anyonic statistics in the absence of a magnetic field. A c…
Programmable Quantum Anomalous Hall Insulator in Twisted Crystalline Flatbands
Wenxuan Wang, Yijie Wang, Zaizhe Zhang +8
The isospin flavors in condensed matters can be continuously broken, forming various symmetry-broken quantum states. In moiré crystals, the competition between different isospin co…
Moiré enhanced flat band in rhombohedral graphene
Hongyun Zhang, Jinxi Lu, Kai Liu +17
The fractional quantum anomalous Hall effect (FQAHE) is a fascinating emergent quantum state characterized by fractionally charged excitations in the absence of magnetic field,whic…
Hundness in twisted bilayer graphene: correlated gaps and pairing
Seongyeon Youn, Beomjoon Goh, Geng-Dong Zhou +2
We characterize gap-opening mechanisms in the topological heavy fermion (THF) model of magic-angle twisted bilayer graphene (MATBG), with and without electron-phonon coupling, usin…
Commensurate and Incommensurate Chern Insulators in Magic-angle Bilayer Graphene
Zaizhe Zhang, Jingxin Yang, Bo Xie +12
The interplay between strong electron-electron interaction and symmetry breaking can have profound influence on the topological properties of materials. In magic angle twisted bila…
Electron phonon coupling in the topological heavy fermion model of twisted bilayer graphene
Yi-Jie Wang, Geng-Dong Zhou, Biao Lian +1
On flat bands of the magic-angle twisted bilayer graphene, exotic correlation physics unfolds. Phonons, through mediating an effective electron-electron interaction, can play a cru…
Correlated Charge Density Wave Insulators in Chirally Twisted Triple Bilayer Graphene
Wenxuan Wang, Gengdong Zhou, Wenlu Lin +16
Electrons residing in flat-band system can play a vital role in triggering spectacular phenomenology due to relatively large interactions and spontaneous breaking of different dege…
Correlated insulators and charge density wave states in chirally twisted triple bilayer graphene
Geng-Dong Zhou, Yi-Jie Wang, Wen-Xuan Wang +2
Motivated by recent experimental observations of displacement-field-tuned correlated insulators at integer and half-integer fillings in chirally twisted triple bilayer graphene (CT…
Tunable Fractional Chern Insulators in Rhombohedral Graphene Superlattices
Jian Xie, Zihao Huo, Xin Lu +11
Fractional Chern insulators (FCIs) showing a transport effect with fractionally quantized Hall plateaus emerging under zero magnetic field, provide a radically new opportunity to e…
Evolution of flat band and role of lattice relaxations in twisted bilayer graphene
Qian Li, Hongyun Zhang, Yijie Wang +15
Magic-angle twisted bilayer graphene (MATBG) exhibits correlated phenomena such as superconductivity and Mott insulating state related to the weakly dispersing flat band near the F…
Molecular Pairing in Twisted Bilayer Graphene Superconductivity
Yi-Jie Wang, Geng-Dong Zhou, Shi-Yu Peng +2
We propose a theory for how the weak phonon-mediated interaction (meV) wins over the prohibitive Coulomb repulsion (meV) and leads to…