25 citations · 133 across the 21 of their papers we have counts for
21 papers
Quantum Fisher information of magnetic quantum phase transition on Kondo lattice
Yuan Fang, Lei Chen, Mounica Mahankali +4
Strange metals exemplify highly collective quantum many-body systems that call for new means of characterization, and there is considerable potential for quantum information approa…
Topology and compact molecular orbitals in twisted bilayer WSe
Chenyuan Li, Rwik Dutta, Fang Xie +4
Recent observations of superconductivity in twisted bilayer WSe (tWSe) have motivated theoretical proposals for unconventional pairing mechanisms. A central question is whe…
Chiral Weyl-Kondo semimetals and hexagonal heavy fermion systems
Kuan-Sen Lin, Yuan Fang, Henrique Fabrelli +7
Strong correlation, in concert with symmetry and topology, engenders novel gapless phases of matter, though only a tip of the iceberg has been seen. An exemplary framework is provi…
Signatures of Green's function zeros and their topology using impurity spectroscopy
Sayan Mitra, Fang Xie, Marek Kolmer +2
Topology without quasiparticles has emerged as a key framework for understanding Mott insulators, where Green's-function zeros encode nontrivial topological structure. Yet, experim…
Topological chiral superconductivity from antiferromagnetic correlations in moiré bands with extreme spin-orbit coupling
Chenyuan Li, Fang Xie, Jennifer Cano +1
Motivated by the strong-correlation phenomenology observed near the superconducting phase in twisted bilayer WSe, we study multi-orbital - models that are derived from di…
Suppression of shot noise at a Kondo destruction quantum critical point
Yiming Wang, Shouvik Sur, Fang Xie +4
Strange metal behavior has been observed in an expanding list of quantum materials, with heavy fermion metals serving as a prototype setting. Among the intriguing questions is the…
Kondo-lattice phenomenology of twisted bilayer WSe from compact molecular orbitals of topological bands
Fang Xie, Chenyuan Li, Jennifer Cano +1
The discovery of superconductivity and correlated electronic phases in twisted bilayer WSe (Xia et al., Nature 2024; Guo et al., Nature 2025) has generated considerable excitem…
Correlated flat-band physics in a bilayer kagome metal based on compact molecular orbitals
Mounica Mahankali, Fang Xie, Yuan Fang +11
Flat bands, when located close to the Fermi energy, can considerably enhance the influence of electron correlations on the low energy physics in kagome and other frustrated-lattice…
Resolving the Kagome Origin of the Strange Metallicity in NiIn
Jean C. Souza, Moshe Haim, Ambikesh Gupta +15
Strong correlations promote singular properties such as strange metallicity, which shows considerable commonality across quantum materials platforms. Understanding the mechanism fo…
Local and Non-local Entanglement Witnesses of Fermi Liquid
Yiming Wang, Yuan Fang, Fang Xie +1
There is a growing interest both in utilizing entanglement means to characterize many-body systems and in uncovering their entanglement depth. Motivated by recent findings that the…
Persistent flat band splitting and strong selective band renormalization in a kagome magnet thin film
Zheng Ren, Jianwei Huang, Hengxin Tan +21
Magnetic kagome materials provide a fascinating playground for exploring the interplay of magnetism, correlation and topology. Many magnetic kagome systems have been reported inclu…
Superconductivity in twisted WSe from topology-induced quantum fluctuations
Fang Xie, Lei Chen, Shouvik Sur +3
Recently, superconductivity has been observed in twisted WSe moiré structures (Xia et al., Nature 2024; Guo et al., Nature 2025). Its transition temperature is high, reaching a…
Chern Bands' Optimally Localized Wannier Functions and Fractional Chern Insulators
Fang Xie, Yuan Fang, Lei Chen +2
Recent development on fractional Chern insulators and proximate phases call for a real space representation of isolated Chern bands. Here we propose a new method for a general cons…
Topological Kondo semimetals emulated in hetero-bilayer transition metal dichalcogenides
Fang Xie, Lei Chen, Yuan Fang +1
The moiré structure of AB-stacked represents a natural platform to realize Kondo lattice models, due to the discrepancy of the bandwidth between the individual…
Spin Excitations and Flat Electronic Bands in a Cr-based Kagome Superconductor
Zehao Wang, Yucheng Guo, Hsiao Yu Huang +33
In the quest for topology- and correlation-driven quantum states, kagome lattice materials have garnered significant interest for their band structures, featuring flat bands (FBs)…
Electron correlations in the kagome flat band metal
Fang Xie, Yuan Fang, Ying Li +7
Kagome metals offer a unique platform for investigating robust electron-correlation effects because of their lattice geometry, flat bands and multi-orbital nature. In the cases wit…
Topological Diagnosis of Strongly Correlated Electron Systems
Chandan Setty, Fang Xie, Shouvik Sur +5
The intersection of electronic topology and strong correlations offers a rich platform to discover exotic quantum phases of matter and unusual materials. An overarching challenge t…
Kondo effect and its destruction in hetero-bilayer transition metal dichalcogenides
Fang Xie, Lei Chen, Qimiao Si
Moiré structures, along with line-graph-based -electron systems, represent a setting to realize flat bands. One form of the associated strong correlation physics is the Kondo ef…
Electronic properties, correlated topology and Green's function zeros
Chandan Setty, Fang Xie, Shouvik Sur +3
There is extensive current interest about electronic topology in correlated settings. In strongly correlated systems, contours of Green's function zeros may develop in frequency-mo…
Metallic quantum criticality enabled by flat bands in a kagome lattice
Lei Chen, Fang Xie, Shouvik Sur +4
Strange metals arise in a variety of platforms for strongly correlated electrons, ranging from the cuprates, heavy fermions to flat band systems. Motivated by recent experiments in…
Symmetry constraints and spectral crossing in a Mott insulator with Green's function zeros
Chandan Setty, Shouvik Sur, Lei Chen +5
Lattice symmetries are central to the characterization of electronic topology. Recently, it was shown that Green's function eigenvectors form a representation of the space group. T…