160 citations · 714 across the 11 of their papers we have counts for
11 papers
Correlated Insulating Phases in the Twisted Bilayer Graphene
Yuan Da Liao, Xiao Yan Xu, Zi Yang Meng +1
We review analytical and numerical studies of correlated insulating states in twisted bilayer graphene, focusing on real-space lattice models constructions and their unbiased quant…
Correlation-induced insulating topological phases at charge neutrality in twisted bilayer graphene
Yuan Da Liao, Jian Kang, Clara N. Breiø +5
Twisted bilayer graphene (TBG) provides a unique framework to elucidate the interplay between strong correlations and topological phenomena in two-dimensional systems. The existenc…
Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data
Xiao Yan Xu, Avraham Klein, Kai Sun +2
Quantum Monte Carlo (QMC) simulations of correlated electron systems provide unbiased information about system behavior at a quantum critical point (QCP) and can verify or disprove…
Confinement transition in the QED-Gross-Neveu-XY universality class
Lukas Janssen, Wei Wang, Michael M. Scherer +2
The coupling between fermionic matter and gauge fields plays a fundamental role in our understanding of nature, while at the same time posing a challenging problem for theoretical…
Dynamics of Compact Quantum Electrodynamics at Large Fermion Flavor
Wei Wang, Da-Chuan Lu, Xiao Yan Xu +2
Thanks to the development in quantum Monte Carlo technique, the compact U(1) lattice gauge theory coupled to fermionic matter at (2+1)D is now accessible with large-scale numerical…
Metal to Orthogonal Metal Transition
Chuang Chen, Xiao Yan Xu, Yang Qi +1
Orthogonal metal is a new quantum metallic state that conducts electricity but acquires no Fermi surface (FS) or quasiparticles, and hence orthogonal to the established paradigm of…
Is magic-angle twisted bilayer graphene near a quantum critical point?
Yuan Da Liao, Zi Yang Meng, Xiao Yan Xu
An extended Hubbard model on a honeycomb lattice with two orbitals per site at charge neutrality is investigated with unbiased large-scale quantum Monte Carlo simulations. The Ferm…
Charge-Density-Wave Transitions of Dirac Fermions Coupled to Phonons
Chuang Chen, Xiao Yan Xu, Zi Yang Meng +1
The spontaneous generation of charge-density-wave order in a Dirac fermion system via the natural mechanism of electron-phonon coupling is studied in the framework of the Holstein…
Monte Carlo Study of Lattice Compact Quantum Electrodynamics with Fermionic Matter: the Parent State of Quantum Phases
Xiao Yan Xu, Yang Qi, Long Zhang +3
The interplay between lattice gauge theories and fermionic matter accounts for fundamental physical phenomena ranging from the deconfinement of quarks in particle physics to quantu…
Kekulé valence bond order in an extended Hubbard model on the honeycomb lattice, with possible applications to twisted bilayer graphene
Xiao Yan Xu, K. T. Law, Patrick A. Lee
Using large-scale quantum Monte Carlo simulations, we exactly solve a model of Fermions hopping on the honeycomb lattice with cluster charge interactions, which has been proposed a…
Symmetry Enforced Self-Learning Monte Carlo Method Applied to the Holstein Model
Chuang Chen, Xiao Yan Xu, Junwei Liu +3
Self-learning Monte Carlo method (SLMC), using a trained effective model to guide Monte Carlo sampling processes, is a powerful general-purpose numerical method recently introduced…