718 citations · 7.5k across the 93 of their papers we have counts for
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Self-dual gauge theory in 2+1d: lattice model and topological phase transitions
Da-Chuan Lu, Chong Wang, Ashvin Vishwanath
Electric-magnetic self-duality of the gauge theory, realized microscopically as a half-lattice-translation exchanging electric charge and magnetic flux, has been an…
Topological Phases with Average Symmetries: the Decohered, the Disordered, and the Intrinsic
Ruochen Ma, Jian-Hao Zhang, Zhen Bi +2
Global symmetries greatly enrich the landscape of topological quantum phases, playing an essential role from topological insulators to fractional quantum Hall effect. Topological p…
Higher-form Symmetries under Weak Measurement
Kaixiang Su, Nayan Myerson-Jain, Chong Wang +2
We aim to address the following question: if we start with a quantum state with a spontaneously broken higher-form symmetry, what is the fate of the system under weak local quantum…
Fractional Chern Insulator in Twisted Bilayer MoTe
Chong Wang, Xiao-Wei Zhang, Xiaoyu Liu +5
A recent experiment has reported the first observation of a zero-field fractional Chern insulator (FCI) phase in twisted bilayer MoTe moiré superlattices [Nature 622, 63-68 (20…
Dynamical Effects from Anomaly: Modified Electrodynamics in Weyl Semimetal
Xuzhe Ying, A. A. Burkov, Chong Wang
We discuss the modified quantum electrodynamics from a time-reversal-breaking Weyl semimetal coupled with a gauge (electromagnetic) field. A key role is played by the soft d…
Average Symmetry-Protected Topological Phases
Ruochen Ma, Chong Wang
Symmetry-protected topological (SPT) phases are many-body quantum states that are topologically nontrivial as long as the relevant symmetries are unbroken. In this work we show tha…
Phase diagram of a bilinear-biquadratic spin-1 model on the triangular lattice from density matrix renormalization group simulations
Aaron Szasz, Chong Wang, Yin-Chen He
We investigate a highly frustrated spin-1 model on the triangular lattice, with nearest- and next-nearest-neighbor antiferromagnetic interactions and nearest-neighbor $(…
Spin Waves and Dirac Magnons in a Honeycomb Lattice Zig-zag Antiferromagnet BaNi2(AsO4)2
Bin Gao, Tong Chen, Chong Wang +5
The topological properties of massive and massless fermionic quasiparticles have been intensively investigated over the past decade in topological materials without magnetism. Rece…
Non-zero momentum requires long-range entanglement
Lei Gioia, Chong Wang
We show that a quantum state in a lattice spin (boson) system must be long-range entangled if it has non-zero lattice momentum, i.e. if it is an eigenstate of the translation symme…
Topological characterization of Lieb-Schultz-Mattis constraints and applications to symmetry-enriched quantum criticality
Weicheng Ye, Meng Guo, Yin-Chen He +2
Lieb-Schultz-Mattis (LSM) theorems provide powerful constraints on the emergibility problem, i.e. whether a quantum phase or phase transition can emerge in a many-body system. We d…
Emergent anomaly of Fermi surfaces: a simple derivation from Weyl fermions
Ruochen Ma, Chong Wang
The Fermi liquid has an emergent low-energy symmetry that corresponds to charge conservation at each momentum on the Ferm surface. Recently Else, Thorngren and Senthil (ETS) argued…
Emergent anomalies and generalized Luttinger theorems in metals and semimetals
Chong Wang, Alexander Hickey, Xuzhe Ying +1
Luttinger's theorem connects a basic microscopic property of a given metallic crystalline material, the number of electrons per unit cell, to the volume, enclosed by its Fermi surf…
Edge physics at the deconfined transition between a quantum spin Hall insulator and a superconductor
Ruochen Ma, Liujun Zou, Chong Wang
We study the edge physics of the deconfined quantum phase transition (DQCP) between a spontaneous quantum spin Hall (QSH) insulator and a spin-singlet superconductor (SC). Although…
Unquantized anomalies in topological semimetals
Lei Gioia, Chong Wang, A. A. Burkov
Topological semimetals are a new class of metallic materials, which exist at band fillings that ordinarily correspond to insulators or compensated accidental semimetals with zero L…
Theory of Dirac Spin-Orbital Liquids: monopoles, anomalies, and applications to honeycomb models
Vladimir Calvera, Chong Wang
Dirac spin liquids represent a class of highly-entangled quantum phases in two dimensional Mott insulators, featuring exotic properties such as critical correlation functions and a…
Stiefel Liquids: Possible Non-Lagrangian Quantum Criticality from Intertwined Orders
Liujun Zou, Yin-Chen He, Chong Wang
We propose a new type of quantum liquids, dubbed Stiefel liquids, based on dimensional nonlinear sigma models on target space , supplemented with Wess-Zumino-Wit…
Theory of Dirac spin liquids on spin- triangular lattice: possible application to -CrOOH(D)
Vladimir Calvera, Chong Wang
Triangular lattice quantum antiferromagnet has recently emerged to be a promising playground for realizing Dirac spin liquids (DSLs) -- a class of highly entangled quantum phases h…
Correlated Fragile Topology: a Parton Approach
Katherine Latimer, Chong Wang
A fragile topological insulator (FTI) can be viewed as an almost-atomic insulator, with emergent negative charges localized at certain real space points, even though the underlying…
Doping-induced quantum spin Hall insulator to superconductor transition
Zhenjiu Wang, Yuhai Liu, Toshihiro Sato +4
A unique property of a dynamically generated quantum spin Hall state are Goldstone modes that correspond to the long-wavelength fluctuations of the spin-orbit coupling order parame…
A theory of deconfined pseudo-criticality
Ruochen Ma, Chong Wang
It has been proposed that the deconfined criticality in -- the quantum phase transition between a Neel anti-ferromagnet and a valence-bond-solid (VBS) -- may actually be p…
Crystallographic splitting theorem for band representations and fragile topological photonic crystals
A. Alexandradinata, J. Höller, Chong Wang +2
The fundamental building blocks in band theory are band representations (BRs): bands whose infinitely-numbered Wannier functions are generated (by action of a space group) from a f…
Fractional Quantum Hall Effect in Weyl Semimetals
Chong Wang, L. Gioia, A. A. Burkov
Weyl semimetal may be thought of as a gapless topological phase protected by the chiral anomaly, where the symmetries involved in the anomaly are the charge conservation and…
Superconductivity from the Condensation of Topological Defects in a Quantum Spin-Hall Insulator
Yuhai Liu, Zhenjiu Wang, Toshihiro Sato +4
The discovery that spin-orbit coupling can generate a new state of matter in the form of quantum spin-Hall (QSH) insulators has brought topology to the forefront of condensed matte…
Unifying Description of Competing Orders in Two Dimensional Quantum Magnets
Xue-Yang Song, Chong Wang, Ashvin Vishwanath +1
Quantum magnets provide the simplest example of strongly interacting quantum matter, yet they continue to resist a comprehensive understanding above one spatial dimension (1D). In…