Rpa Renormalizado
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1. MÉTODO RPA RENORMALIZADO PARA O MODELO DE HUBBARD ESTENDIDO / RENORMALIZED RPA METHOD FOR THE EXTENDED HUBBARD MODEL
In this work we apply the Random Phase Approximation (RPA) to the Extended Hubbard Model in one dimension. Initially we investigate the e®ect of the first neighbor interaction term, V , on the spin and charge susceptibilities. When V is small, its influence is also very small but as it grows, it tends to lower the plasmon frequency and to inhibit the condit
Publicado em: 2003