36 citations · 97 across the 11 of their papers we have counts for
12 papers
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…
Nonadiabatic transition at a band-touching point
Mohammad-Sadegh Vaezi, Davoud Nasr Esfahani
Low-energy Hamiltonians with a linear crossing in their energy dispersion (dubbed Dirac Hamiltonians) have recently been the subject of intense investigations. The linear dispersio…
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.…
Pairing and non-Fermi liquid behavior in partially flat-band systems
Sharareh Sayyad, Edwin W. Huang, Motoharu Kitatani +4
While multiband systems are usually considered for flat-band physics, here we study one-band models that have flat portions in the dispersion to explore correlation effects in the…
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…