5 papers
Quantum Many-Body Simulations of the 2D Fermi-Hubbard Model in Ultracold Optical Lattices
Bin-Bin Chen, Chuang Chen, Ziyu Chen +6
Understanding quantum many-body states of correlated electrons is one main theme in modern condensed matter physics. Given that the Fermi-Hubbard model, the prototype of correlated…
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…
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…
Statistical inference and feasibility determination: a nonasymptotic approach
Ying Zhu
We develop non-asymptotically justified methods for hypothesis testing about the dimensional coefficients in (possibly nonlinear) regression models. Given a function $h…
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…