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Spectral weight function for the half-filled hubbard-model - a singular-value decomposition approach
Creffield, Charles E. ; Klepfish,, E.G. ; Pike, E. R. ; Sarkar, Sarben | American Physical Society | 1995-07-17The singular value decomposition technique is used to reconstruct the electronic spectral weight function for a half-filled Hubbard model with on-site repulsion U = 4t from quantum Monte Carlo data. A two-band structure for the single-particle e[...]
