36 citations · 97 across the 11 of their papers we have counts for
7 papers · 1 filter
Hubbard Model on the Honeycomb Lattice with an Indefinite Long-Range Interaction
Mohammad-Sadegh Vaezi, Davoud Nasr Esfahani
Several studies have emphasized the impact of long-range Coulomb interactions in lattice fermions, yet conventional Auxiliary Field Quantum Monte Carlo (QMC) methods face limitatio…
An Amelioration for the Sign Problem: Adiabatic Quantum Monte Carlo
Mohammad-Sadegh Vaezi, Amir-Reza Negari, Amin Moharramipour +1
We introduce the adiabatic quantum Monte Carlo (AQMC) method, where we gradually crank up the interaction strength, as an amelioration of the sign problem. It is motivated by the a…
Entanglement Hamiltonian of Interacting Systems: Local Temperature Approximation and Beyond
Mahdieh Pourjafarabadi, Hanieh Najafzadeh, Mohammad-Sadegh Vaezi +1
We investigate the second quantization form of the entanglement Hamiltonian (EH) of various subregions for the ground-state of several interacting lattice fermions and spin models.…
Enhanced correlations and superconductivity in weakly interacting partially flat band systems: a determinantal quantum Monte Carlo study
Edwin W. Huang, Mohammad-Sadegh Vaezi, Zohar Nussinov +1
Motivated by recent experiments realizing correlated phenomena and superconductivity in 2D van der Waals devices, we consider the general problem of whether correlation effects may…
A unified theory of variational and quantum Monte Carlo methods and beyond
Mohammad-Sadegh Vaezi, Abolhassan Vaezi
We present a unified theory of the variational Monte Carlo (VMC) and determinant quantum Monte Carlo (DQMC) methods using a novel density matrix formulation of VMC. We introduce an…
Numerical Observation of Parafermion Zero Modes and their Stability in 2D Topological States
Mohammad-Sadegh Vaezi, Abolhassan Vaezi
The possibility of realizing non-Abelian excitations (non-Abelions) in two-dimensional (2D) Abelian states of matter has generated a lot of interest recently. A well-known example…
Slave-spin approach to the strongly correlated systems
Masoud Mardani, Mohammad-Sadegh Vaezi, Abolhassan Vaezi
In this paper, we develop a new type of slave particle method which is similar to the slave rotor model except that the quantum rotor is substituted by a spin one slave particle. T…