71 citations · 218 across the 14 of their papers we have counts for
14 papers · 1 filter
Deconfined criticality between an antiferromagnetic insulator and a nodal d-wave superconductor: a quantum Monte Carlo study
Chuang Chen, Subir Sachdev, Zi Yang Meng
We present a quantum Monte Carlo study of the transition between the insulating Néel state and the nodal -wave superconductor on the square lattice at half-filling. We access a…
Scalable hybrid quantum Monte Carlo simulation of U(1) gauge field coupled to fermions on GPU
Kexin Feng, Chuang Chen, Zi Yang Meng
We develop a GPU-accelerated hybrid quantum Monte Carlo (QMC) algorithm to solve the fundamental yet difficult problem of gauge field coupled to fermions, which gives rise t…
Emergent gauge flux in mixed QED with flavor chemical potential: application to magnetized U(1) Dirac spin liquids
Chuang Chen, Urban F. P. Seifert, Kexin Feng +3
We design a lattice model of a "mixed" U(1) gauge field coupled to fermions with a flavor chemical potential and solve it with large-scale determinant quantum Monte Carlo simulatio…
Self-learning Monte Carlo Method: A Review
Gaopei Pan, Chuang Chen, Zi Yang Meng
The Self-Learning Monte Carlo (SLMC) method is a Monte Carlo approach that has emerged in recent years by integrating concepts from machine learning with conventional Monte Carlo t…
Universal collective Larmor-Silin mode emerging in magnetized correlated Dirac fermions
Chuang Chen, Yuan Da Liao, Chengkang Zhou +3
Employing large-scale quantum Monte Carlo simulations, we find that in the magnetized interacting Dirac fermion model there emerges a universal collective Larmor-Silin spin wave mo…
Incremental SWAP Operator for Entanglement Entropy: Application for Exponential Observables in Quantum Monte Carlo Simulation
Xuan Zhou, Zi Yang Meng, Yang Qi +1
We propose a new method to efficiently compute the entanglement entropy (EE) of quantum many-body systems. Our approach, called the incremental SWAP operator method , combines the…
The teaching from entanglement: 2D SU(2) antiferromagnet to valence bond solid deconfined quantum critical points are not conformal
Yuan Da Liao, Gaopei Pan, Weilun Jiang +2
The deconfined quantum critical point (DQCP) -- the enigmatic incarnation of the quantum phase transition beyond the Landau-Ginzburg-Wilson paradigm of symmetries and their spontan…
Dirac fermions with plaquette interactions. III. SU(N) phase diagram with Gross-Neveu criticality and first-order phase transition
Yuan Da Liao, Xiao Yan Xu, Zi Yang Meng +1
Inspired by our recent works[1, 2] of SU(2) and SU(4) Dirac fermions subjected to plaquette interactions on square lattice, here we extend the large-scale quantum Monte Carlo inves…
Dirac fermions with plaquette interactions. II. SU(4) phase diagram with Gross-Neveu criticality and quantum spin liquid
Yuan Da Liao, Xiao Yan Xu, Zi Yang Meng +1
At sufficiently low temperatures, interacting electron systems tend to develop orders. Exceptions are quantum critical point (QCP) and quantum spin liquid (QSL), where fluctuations…
Sign Problem in Quantum Monte Carlo Simulation
Gaopei Pan, Zi Yang Meng
Sign problem in quantum Monte Carlo (QMC) simulation appears to be an extremely hard yet interesting problem. In this article, we present a pedagogical overview on the origin of th…
Dirac fermions with plaquette interactions. I. SU(2) phase diagram with Gross-Neveu and deconfined quantum criticalities
Yuan Da Liao, Xiao Yan Xu, Zi Yang Meng +1
We investigate the ground state phase diagram of an extended Hubbard model with -flux hopping term at half-filling on a square lattice, with unbiased large-scale auxiliary-field…
Network-Initialized Monte Carlo Based on Generative Neural Networks
Hongyu Lu, Chuhao Li, Bin-Bin Chen +3
We design generative neural networks that generate Monte Carlo configurations with complete absence of autocorrelation from which only short Markov chains are needed before making…
Solving quantum rotor model with different Monte Carlo techniques
Weilun Jiang, Gaopei Pan, Yuzhi Liu +1
We systematically test the performance of several Monte Carlo update schemes for the d XY phase transition of quantum rotor model. By comparing the local Metropolis (LM), LM…
QIST: An open source continuous-time quantum Monte Carlo impurity solver toolkit
Li Huang, Yilin Wang, Zi Yang Meng +3
Quantum impurity solvers have a broad range of applications in theoretical studies of strongly correlated electron systems. Especially, they play a key role in dynamical mean-field…