182 citations · 1k across the 25 of their papers we have counts for
25 papers
Universal entanglement signatures of interface conformal field theories
Qicheng Tang, Zixia Wei, Yin Tang +2
An interface connecting two distinct conformal field theories hosts rich critical behaviors. In this work, we investigate the entanglement properties of such critical interface the…
Non-Hermitian Parent Hamiltonian from Generalized Quantum Covariance Matrix
Yin Tang, W. Zhu
Quantum inverse problem is defined as how to determine a local Hamiltonian from a single eigenstate? This question is valid not only in Hermitian system but also in non-Hermitian s…
Emergent Superconductivity and Competing Charge Orders in Hole-Doped Square-Lattice - Model
Xin Lu, Feng Chen, W. Zhu +2
The square-lattice Hubbard and closely related - models are considered as basic paradigms for understanding strong correlation effects and unconventional superconductivity (S…
Global quantum phase diagram and non-Abelian chiral spin liquid in a spin-3/2 square lattice antiferromagnet
Wei-Wei Luo, Yixuan Huang, D. N. Sheng +1
Since strong quantum fluctuations are essential for the emergence of quantum spin liquids, there have been extensive exploration and identification of spin liquid candidates in spi…
Robust d-wave superconductivity in the square-lattice - model
Shoushu Gong, W. Zhu, D. N. Sheng
Unravelling competing orders emergent in doped Mott insulators and their interplay with unconventional superconductivity is one of the major challenges in condensed matter physics.…
Quantum criticality in the nonunitary dynamics of -dimensional free fermions
Qicheng Tang, Xiao Chen, W. Zhu
We explore the nonunitary dynamics of -dimensional free fermions and show that the obtained steady state is critical regardless the strength of the nonunitary evolution. Num…
Bosonic Halperin fractional quantum Hall effect at filling factor
Tian-Sheng Zeng, Liangdong Hu, W. Zhu
Quantum Hall effects with multicomponent internal degrees of freedom facilitate the playground of novel emergent topological orders. Here, we explore the correlated topological pha…
Doping dependence of electronic structure of infinite-layer NdNiO2
Zhao Liu, Chenchao Xu, Chao Cao +3
We investigate the electronic structure of nickelate superconductor NdNiO2 upon hole doping, by means of density-functional theory and dynamical mean-field theory. We demonstrate t…
Quantum Hall effects of exciton condensate in topological flat bands
Tian-Sheng Zeng, D. N. Sheng, W. Zhu
Tunable exciton condensates in two dimensional electron gas systems under strong magnetic field exhibits anomalous Hall transport owing to mutual Coulomb coupling, and have attract…
Topological Interface between Pfaffian and anti-Pfaffian Order in Quantum Hall Effect
W. Zhu, D. N. Sheng, Kun Yang
Recent thermal Hall experiment pumped new energy into the problem of quantum Hall effect, which motivated novel interpretations based on formation of mesoscopic puddles mad…
Microscopic Diagnosis of Universal Geometric Responses in Fractional Quantum Hall Liquids
Liangdong Hu, Zhao Liu, D. N. Sheng +2
Topological quantum liquids contain internal degrees of freedom that are coupled to geometric response. Yet, an explicit and microscopic identification of geometric response remain…
Electronic and Magnetic Structure of Infinite-layer : Trace of Antiferromagnetic Metal
Zhao Liu, Zhi Ren, W. Zhu +2
The recent discovery of Sr-doped infinite-layer nickelate [D. Li et al. Nature 572, 624 (2019)] offers an exciting platform for investigating unconventional supe…
Critical Scaling Behaviors of Entanglement Spectra
Qicheng Tang, W. Zhu
We investigate the evolution of entanglement spectra under a global quantum quench from a short-range correlated state to the quantum critical point. Motivated by the conformal map…
Measurement-induced phase transition: A case study in the non-integrable model by density-matrix renormalization group calculations
Qicheng Tang, W. Zhu
We study the effect of local projective measurements on the quantum quench dynamics. As a concrete example, a one-dimensional Bose-Hubbard model is simulated by the matrix product…
Continuous phase transition between bosonic integer quantum Hall liquid and trivial insulator: evidences for deconfined quantum criticality
Tian-Sheng Zeng, D. N. Sheng, W. Zhu
The deconfined quantum critical point, a prototype Landau-forbidden transition, could exist in principle in the phase transitions involving symmetry protected topological phase, ho…
Dirac Spin Liquid on the Spin-1/2 Triangular Heisenberg Antiferromagnet
Shijie Hu, W. Zhu, Sebastian Eggert +1
We study the spin liquid candidate of the spin- - Heisenberg antiferromagnet on the triangular lattice by means of density matrix renormalization group (DMRG) simula…
Topological characterization of hierarchical fractional quantum Hall effects in topological flat bands with SU() symmetry
Tian-Sheng Zeng, D. N. Sheng, W. Zhu
We study the many-body ground states of SU() symmetric hardcore bosons on the topological flat-band model by using controlled numerical calculations. By introducing strong intra…
Tomonaga-Luttinger Liquid Behavior and Spinon Confinement in YbAlO
L. S. Wu, S. E. Nikitin, Z. Wang +14
Low dimensional quantum magnets are interesting because of the emerging collective behavior arising from strong quantum fluctuations. The one-dimensional (1D) S = 1/2 Heisenberg an…
Disorder-driven transition and intermediate phase for fractional quantum Hall effect
W. Zhu, D. N. Sheng
The fractional quantum Hall (FQH) effect at the filling number is a primary candidate for non-Abelian topological order, while the fate of such a state in the presence of r…
Quantum Anomalous Hall Phase Stabilized via Realistic Interactions on a Kagome Lattice
Yafei Ren, T. -S. Zeng, W. Zhu +1
We study the quantum phases of spinless fermion at one-third filling on a Kagome lattice featuring a quadratic band touching Fermi point. In the presence of weak first and second n…
Spinon Fractionalization from Dynamic Structure Factor of Spin-1/2 Heisenberg Antiferromagnet on the Kagome Lattice
W. Zhu, Shou-Shu Gong, D. N. Sheng
We study dynamical spin structure factor (DSSF) of S = 1/2 Heisenberg model on the kagome lattice (KAFM) by means of density-matrix renormalization group. By comparison with the we…
Local Quantum Criticality of a One-Dimensional Kondo Insulator Model
W. Zhu, Jian-xin Zhu
The continuous quantum phase transition and the nature of quantum critical point (QCP) in a modified Kondo lattice model with Ising anisotropic exchange interactions is studied wit…
Magnetic field-dependent dynamics and field-driven metal-to-insulator transition of the half-filled Hubbard model: A DMFT+DMRG study
W. Zhu, D. N. Sheng, Jian-Xin Zhu
We study the magnetic field driven metal-to-insulator transition in half-filled Hubbard model on the Bethe lattice, using the dynamical mean-field theory by solving the quantum imp…
Nature of continuous phase transitions in interacting topological insulators
Tian-Sheng Zeng, W. Zhu, Jian-Xin Zhu +1
We revisit the effects of the Hubbard repulsion on quantum spin Hall effects (QSHE) in two-dimensional quantum lattice models. We present both unbiased exact diagonalization and de…