We report an implementation of the momentum space quantum Monte Carlo (QMC) method
on the interaction model for the twisted bilayer graphene (TBG). The long-range Coulomb …

There is no doubt that the information hidden in entanglement entropy (EE), for example, the
n th order Rényi EE, ie, S n A= 1 1− n ln Tr (ρ A n), where ρ A= Tr A¯ ρ is the reduced density …

We develop a nonequilibrium increment method in quantum Monte Carlo simulations to
obtain the Rényi entanglement entropy of various quantum many-body systems with high …

Motivated by recent development of the concept of the disorder operator and its relation with
entanglement entropy in bosonic systems, here we show the disorder operator successfully …

Recent experiments with ultracold fermionic atoms in optical lattices have provided a
tuneable and clean realization of the attractive Hubbard model (AHM). In view of this …

Quantum entanglement uncovers the essential principles of quantum matter, yet determining
its structure in realistic many-body systems poses significant challenges. Here, we employ a …

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 …

We summarize the recent developments in the model design and computation for a few
representative quantum many-body systems, encompassing quantum critical metals beyond …

It is expected that the Gross-Neveu-Yukawa (GNY) chiral Ising transition of Dirac fermions
coupled with a scalar field in (2+ 1) dimensions will be the first fermionic quantum critical …

In this paper, we study the quantum criticality of Dirac fermions via large-scale numerical
simulations, focusing on the Gross-Neveu-Yukawa chiral-Ising quantum critical point (QCP) …