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Finite f-Electron Bandwidth in a Heavy Fermion Model
Axel Euverte, Simone Chiesa, Richard T. Scalettar +1
Determinant Quantum Monte Carlo (DQMC) is used to study the effect of non-zero hopping t_f in the localized f-band of the periodic Anderson model (PAM) in two dimensions. The low t…
Phases of attractive spin-imbalanced fermions in square lattices
Simone Chiesa, Shiwei Zhang
We determine the relative stability of different ground-state phases of spin-imbalanced popula- tions of attractive fermions in square lattices. The phases are systematically chara…
Magnetic order in the repulsive Fermi-Hubbard model in three-dimensions and the crossover to two-dimensions
Jie Xu, Simone Chiesa, Eric J. Walter +1
Systems of fermions described by the three-dimensional (3D) repulsive Hubbard model on a cubic lattice have recently attracted considerable attention due to their possible experime…