| Автор | Arnd Hübsch |
| Автор | Matthias Vojta |
| Автор | Klaus W Becker |
| Дата выпуска | 1999-11-01 |
| dc.description | Effective Hamiltonians are usually constructed by using canonical transformations or projection techniques. In contrast to this, we present a method for systems with arbitrary Hilbert space based on the introduction of cumulants. Cumulants guarantee size consistency, a property that is not always evident in other treatments. As a non-trivial example of use the derived method is applied to the strong-coupling limit of the half-filled Hubbard model on a general lattice in arbitrary spatial dimension for which the fourth-order expansion in t/U of the effective Hamiltonian is derived. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Construction of size-consistent effective Hamiltonians for systems with arbitrary Hilbert space |
| Тип | paper |
| DOI | 10.1088/0953-8984/11/43/316 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 11 |
| Первая страница | 8523 |
| Последняя страница | 8535 |
| Аффилиация | Arnd Hübsch; Institut für Theoretische Physik, Technische Universität Dresden, D-01062 Dresden, Germany |
| Аффилиация | Matthias Vojta; Institut für Theoretische Physik, Technische Universität Dresden, D-01062 Dresden, Germany |
| Аффилиация | Klaus W Becker; Institut für Theoretische Physik, Technische Universität Dresden, D-01062 Dresden, Germany |
| Выпуск | 43 |
