105 citations · 731 across the 29 of their papers we have counts for
30 papers
Lee--Yang Zeros and Pseudocritical Drift in J-Q Néel Antiferromagnet--Valence-Bond Solid Transitions
Chunhao Guo, Zhe Wang, Danhe Wang +3
Square-lattice J-Q models provide a sign-problem-free setting for probing the quantum phase transition between Néel antiferromagnet and columnar valence-bond solid. We analyze this…
Cascade of singularities in the spin dynamics of a perturbed quantum critical Ising chain
Xiao Wang, Haiyuan Zou, Kristóf Hódsági +3
When the quantum critical transverse-field Ising chain is perturbed by a longitudinal field, a quantum integrable model emerges in the scaling limit with massive excitations descri…
Symmetry-protected topological phase transitions and robust chiral order on a tunable zigzag lattice
Qibin Zheng, Xing Li, Haiyuan Zou
Symmetry fractionalization, generating a large amount of symmetry-protected topological phases, provides scenarios for continuous phase transitions different from spontaneous symme…
Nearly degenerate ground states of a checkerboard antiferromagnet and their bosonic interpretation
Haiyuan Zou, Fan Yang, Wei Ku
The spin- model system with antiferromagnetic (AF) couplings on a - checkerboard lattice, known as the planar pyrochlore model, is strongly frustrated and associated…
Observation of E8 Particles in an Ising Chain Antiferromagnet
Zhao Zhang, Kirill Amelin, Xiao Wang +9
Near the transverse-field induced quantum critical point of the Ising chain, an exotic dynamic spectrum consisting of exactly eight particles was predicted, which is uniquely descr…
Spectra of Quasi-one-dimensional Antiferromagnet BaCoVO under Transverse Field
Haiyuan Zou, Y. Cui, X. Wang +16
We report V nuclear magnetic resonance (NMR) and inelastic neutron scattering (INS) measurements on a quasi-1D antiferromagnet BaCoVO under transverse field alon…
Universality of Heisenberg-Ising chain in external fields
Haiyuan Zou, Rong Yu, Jianda Wu
Motivated by the recent surge of transverse-field experiments on quasi-one-dimensional antiferromagnets Sr(Ba)CoVO, we investigate the quantum phase transition in a Hei…
Quantum criticality of the Ising-like screw chain antiferromagnet SrCo2V2O8 in a transverse magnetic field
Y. Cui, H. Zou, N. Xi +9
The quantum criticality of an Ising-like screw chain antiferromagnet SrCoVO, with a transverse magnetic field applied along the crystalline -axis, is investigated by…
Quantum Critical Dynamics of a Heisenberg-Ising Chain in a Longitudinal Field: Many-Body Strings versus Fractional Excitations
Zhe Wang, M. Schmidt, A. Loidl +11
We report a high-resolution terahertz spectroscopic study of quantum spin dynamics in the antiferromagnetic Heisenberg-Ising spin-chain compound BaCoVO as a function of…
Exactly Solvable Points and Symmetry-Protected Topological Phases of Quantum Spins on a Zig-Zag Lattice
Haiyuan Zou, Erhai Zhao, Xi-Wen Guan +1
A large number of symmetry-protected topological (SPT) phases have been hypothesized for strongly interacting spin-1/2 systems in one dimension. Realizing these SPT phases, however…
D-wave superconductivity induced by proximity to the non-uniform chiral spin liquid on a square lattice
Rui Wang, Haiyuan Zou, Tigran Sedrakyan +2
We use the tensor network algorithm to show evidences of a non-uniform chiral spin-liquid (CSL) ground state in a frustrated spin-1/2 model on a square lattice, in the regime of mo…
Frustrated Magnetism of Dipolar Molecules on a Square Optical Lattice: Prediction of a Quantum Paramagnetic Ground State
Haiyuan Zou, Erhai Zhao, W. Vincent Liu
Motivated by the experimental realization of quantum spin models of polar molecule KRb in optical lattices, we analyze the spin 1/2 dipolar Heisenberg model with competing anisotro…
Approaching conformality with the Tensor Renormalization Group method
Yannick Meurice, Li-Ping Yang, Judah Unmuth-Yockey +4
We discuss the Tensor Renormalization Group (TRG) method for the O(2) model with a chemical potential in 1+1 dimensions with emphasis on near gapless/conformal situations. We empha…
A continuum of compass spin models on the honeycomb lattice
Haiyuan Zou, Bo Liu, Erhai Zhao +1
Quantum spin models with spatially dependent interactions, known as compass models, play an important role in the study of frustrated quantum magnetism. One example is the Kitaev m…
The fine structure of the entanglement entropy in the classical XY model
Li-Ping Yang, Yuzhi Liu, Haiyuan Zou +2
We compare two calculations of the particle density in the superfluid phase of the classical XY model with a chemical potential in 1+1 dimensions.The first relies on exact bloc…
Tensor renormalization group study of the 2d O(3) model
Judah Unmuth-Yockey, Yannick Meurice, James Osborn +1
We present our progress on a study of the model in two-dimensions using the Tensor Renormalization Group method. We first construct the theory in terms of tensors, and show…
Sampling versus Blocking
Yannick Meurice, Yuzhi Liu, Judah Unmuth-Yockey +2
The idea of blocking in configuration space has played an important role in the development of the RG ideas. However, despite being half a century old and having had a huge intelle…
Progress towards quantum simulating the classical O(2) model
Haiyuan Zou, Yuzhi Liu, Chen-Yen Lai +8
We connect explicitly the classical model in 1+1 dimensions, a model sharing important features with lattice gauge theory, to physical models potentially implementabl…
Comparing Tensor Renormalization Group and Monte Carlo calculations for spin and gauge models
Yannick Meurice, Alan Denbleyker, Yuzhi Liu +5
We show that the Tensor Renormalization Group (TRG) method can be applied to O(N) spin models, principal chiral models and pure gauge theories (Z2, U(1) and SU(2)) on (hyper) cubic…
Controlling sign problems in spin models using tensor renormalization
Alan Denbleyker, Yuzhi Liu, Y. Meurice +5
We consider the sign problem for classical spin models at complex on lattices. We show that the tensor renormalization group method allows reliable calculat…
Tensor renormalization group study of classical XY model on the square lattice
J. F. Yu, Z. Y. Xie, Y. Meurice +6
Using the tensor renormalization group method based on the higher-order singular value decom- position, we have studied the thermodynamic properties of the continuous XY model on t…
Exact blocking formulas for spin and gauge models
Yuzhi Liu, Y. Meurice, M. P. Qin +5
Using the example of the two-dimensional (2D) Ising model, we show that in contrast to what can be done in configuration space, the tensor renormalization group (TRG) formulation a…
Fisher zeros and conformality in lattice models
Yannick Meurice, Alexei Bazavov, Bernd A. Berg +6
Fisher zeros are the zeros of the partition function in the complex beta=2N_c/g^2 plane. When they pinch the real axis, finite size scaling allows one to distinguish between first…
Comparison of Improved Perturbative Methods
Y. Meurice, Haiyuan Zou
In many cases of interest, the perturbative series based on conventional Feynman diagrams have a zero radius of convergence. Series with a finite radius of convergence can be obtai…