Accessing the Néel phase of ultracold fermionic atoms in a simple-cubic optical lattice

@article{Mathy2009AccessingTN,
  title={Accessing the N{\'e}el phase of ultracold fermionic atoms in a simple-cubic optical lattice},
  author={Charles Mathy and David A. Huse},
  journal={Physical Review A},
  year={2009},
  volume={79},
  pages={063412}
}
For a simple-cubic optical lattice with lattice spacing d, occupied by two species of fermionic atoms of mass m that interact repulsively, we ask what conditions maximize the Neel temperature in the Mott insulating phase at density one atom per site, with equal numbers of the two species. This maximum occurs near the edge of the regime where the system is well-approximated by the usual Hubbard model. The correction to the Hubbard-model approximation that produces a "direct" ferromagnetic… 

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