24 citations · 37 across the 10 of their papers we have counts for
10 papers
Deconfined quantum critical point in a dissipative spin-1/2 chain
Longye Lu, Shifeng Cui, Wenan Guo
Open quantum spin systems offer a previously unexplored route to realizing deconfined quantum criticality. We consider a spin-1/2 - chain, consisting of an antiferromagneti…
Probing the Critical Behavior of a Sign-Problematic Model with Monte Carlo Simulations
Ye Ling, Yuting Wang, Wenan Guo +1
The sign-problematic generalized Baxter-Wu (GBW) model with asymmetric complex couplings is mapped onto a one-dimensional quantum model. Utilizing the model's exactly known critica…
Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets
Fan Zhang, Nisheeta Desai, Wenan Guo +1
We study the phase diagrams of models of bilayers of square lattices antiferromagnets with SU(2) Heisenberg symmetry that have 2, 4, and 6 spin exchanges. We study tw…
First-order Néel-VBS transition in antiferromagnets
Fan Zhang, Wenan Guo, Ribhu K. Kaul
We study the transition between Néel and columnar valence-bond solid ordering in two-dimensional square lattice quantum antiferromagnets with SO(3) symmetry. According to t…
SO(5) multicriticality in two-dimensional quantum magnets
Jun Takahashi, Hui Shao, Bowen Zhao +2
We resolve the nature of the quantum phase transition between antiferromagnetic and valence-bond solid ground states in square-lattice spin-1/2 magnets - the putative deconfined qu…
Field-induced Peierls phase in Heisenberg spins coupled to quantum phonons
Shifeng Cui, Wenan Guo, G. G. Batrouni +1
Spin-Peierls transition occurs in a one-dimensional Heisenberg antiferromagnetic model with single-ion anisotropy, coupled to finite frequency bond phonons, in a magnetic fie…
Diagnosing Symmetry and First-Order Transition in the Model via Entanglement Entropy
Zehui Deng, Lu Liu, Wenan Guo +1
We study the scaling behavior of the Rényi entanglement entropy with smooth boundaries at the phase transition point of the two-dimensional model. Using the recently develo…
Phase diagram of a square lattice model of XY Spins with direction-dependent interactions
Fan Zhang, Wenan Guo, Ribhu K. Kaul
We study a generalization of the well-known classical two-dimensional square lattice compass model of XY spins (sometimes referred to as the 90 compass model), which interp…
Formal Green's function theory in non-Hermitian lattice systems
Changrui Chen, Wenan Guo
In this paper, we employ the generalized Bloch theory to rediscover the generalized Brillouin zone theory and follow this way to obtain the Green's function of the non-Hermitian sy…
Primary and Secondary Order Parameters in the Fully Frustrated Transverse Field Ising Model on the Square Lattice
Gabe Schumm, Hui Shao, Wenan Guo +2
Using quantum Monte Carlo simulations and field-theory arguments, we study the fully frustrated (Villain) transverse-field Ising model on the square lattice. We consider a "primary…