Summation of perturbation series in the generalized Hubbard model |
| |
| Authors: | AF Barabanov KA Kikoin LA Maksimov |
| |
| Institution: | Institute for High Pressure Physics, USSR Academy of Sciences Moskovskaja obl, Podolskii r-n Academgorodok, USSR |
| |
| Abstract: | The cumulant expansion is proposed for the summation of perturbation series in the generalized Hubbard model, which considers strongly correlated d-electrons hybridized with nearly free conduction electrons. It is shown, that summation of the principle series for the Green's functions leads to the Kondo renormalization of d-level hybridized with s-band. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
