222 citations · 903 across the 22 of their papers we have counts for
4 papers · 1 filter
Hole Dynamics in Two-Dimensional Antiferromagnetic Mott Insulators
F. F. Assaad, M. Imada
The dispersion relation of a doped hole in the half-filled 2D Hubbard model is shown to follow a k^4 law around the (0,pi) and (pi,0) points in the Brillouin zone. Upon addition of…
Metal-Insulator and Superconductor-Insulator Transitions in Correlated Electron Systems
Masatoshi Imada, Fakher F. Assaad, Hirokazu Tsunetsugu +1
Quantum transitions between the Mott insulator and metals by controlling filling in two-dimensional square lattice are characterized by a large dynamical exponent where the o…
SU(2)-spin Invariant Auxiliary Field Quantum Monte Carlo Algorithm for Hubbard models
F. F. Assaad
Auxiliary field quantum Monte Carlo methods for Hubbard models are generally based on a Hubbard-Stratonovitch transformation where the field couples to the z-component of the spin.…
The interplay between d-wave superconductivity and antiferromagnetic fluctuations: a quantum Monte Carlo study
F. F. Assaad
We consider the repulsive Hubbard model on a square lattice with an additional term, W, which depends upon the square of a single-particle nearest-neighbor hopping. At half-band fi…