325 citations · 597 across the 11 of their papers we have counts for
3 papers · 1 filter
The Antiferromagnetic Character of the Quantum Phase Transition in the Hubbard Model on the Honeycomb Lattice
Johann Ostmeyer, Evan Berkowitz, Stefan Krieg +3
We provide a unified, comprehensive treatment of all operators that contribute to the anti-ferromagnetic, ferromagnetic, and charge-density-wave structure factors and order paramet…
Avoiding Ergodicity Problems in Lattice Discretizations of the Hubbard Model
Jan-Lukas Wynen, Evan Berkowitz, Christopher Körber +2
The Hubbard model arises naturally when electron-electron interactions are added to the tight-binding descriptions of many condensed matter systems. For instance, the two-dimension…
Is graphene in vacuum an insulator?
Joaquín E. Drut, Timo A. Lähde
We present evidence, from Lattice Monte Carlo simulations of the phase diagram of graphene as a function of the Coulomb coupling between quasiparticles, that graphene in vacuum is…