Self-consistent random phase approximation: Application to the Hubbard model for finite number of sites
Self-consistent random phase approximation: Application to the Hubbard model for finite number of sites
Within the 1D Hubbard model linear closed chains with various numbers of sites are considered in Self Consistent Random Phase Approximation (SCRPA). Excellent results with a minimal numerical effort are obtained for 2+4n sites cases, confirming earlier results with this theory for other models. However, the 4n sites cases need …