| Автор | S S Moliver |
| Дата выпуска | 1994-03-14 |
| dc.description | A dispersion relation is derived for the collective oscillation mode in a strongly correlated electron system, described by a single-band lattice Hubbard model. On the basis of the equations of motion for a pair of propagators (oneand two-electron causal temperature Green functions), a self-oscillatory condition is formulated and obtained by the same technique as the superconductor susceptibility to a variable external field. The equations of motion are subdivided into a stationary part and an oscillatory part. The stationary part establishes a self-consistent relation between the chemical potential and the occupancy numbers of the thermodynamic equilibrium state, and it can be applied to any variously ordered a priori ground state. The oscillatory part yields a dispersion relation for the collective oscillation mode, and it is considered for a system with translationally invariant ground state. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Theory of collective oscillations in strongly correlated electron systems |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/11/011 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 2225 |
| Последняя страница | 2239 |
| Аффилиация | S S Moliver; Lomonosov (M.V.) State Univ., Moscow, Russia |
| Выпуск | 11 |
