AFQMC entropy phase diagrams for the 3D Hubbard model show that interaction-dependent entropy increase and density disorder quantitatively account for the experimental AFM structure factor maximum at U/t ≃ 11.75 rather than the prior theoretical value ≃ 8.
Esslinger, Fermi-hubbard physics with atoms in an op- tical lattice, Annual Review of Condensed Matter Physics 1, 129 (2010)
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Thermal Entropy, Density Disorder and Antiferromagnetism of Repulsive Fermions in 3D Optical Lattice
AFQMC entropy phase diagrams for the 3D Hubbard model show that interaction-dependent entropy increase and density disorder quantitatively account for the experimental AFM structure factor maximum at U/t ≃ 11.75 rather than the prior theoretical value ≃ 8.