A semiclassical coherent-state approximation for the Hubbard model qualitatively reproduces exact results for particle number, double occupancy, hopping, and spin correlations in one- and two-site systems.
Nemoto, Generalized coherent states for SU(n) sys- tems, Journal of Physics A: Mathematical and General 33, 3493 (2000)
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Semiclassical representation of the Hubbard model
A semiclassical coherent-state approximation for the Hubbard model qualitatively reproduces exact results for particle number, double occupancy, hopping, and spin correlations in one- and two-site systems.