| Автор | T K Kopec |
| Автор | K D Usadel |
| Дата выпуска | 1999-01-25 |
| dc.description | We consider the short-range-interaction disordered quantum spherical model with a symmetrical binary -bond distribution on the Bethe lattice (with coordination number z). The system exhibits a quantum phase transition separating the spin-glass and disordered phases, where the quantum effects are regulated by a parameter describing the kinetic energy. The model admits, in the spherical limit, an exact solution both in the spin-glass phase and in the disordered phase. The quantum dynamics is examined via various correlation functions on the infinite tree, which are evaluated in closed form. A closed-form solution for the averaged free energy has been obtained, and various thermodynamic functions are explicitly derived in the form of low-temperature expansions. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The short-range-interaction -random-bond spherical quantum spin glass on the Bethe lattice: dynamic correlations and thermodynamic functions |
| Тип | paper |
| DOI | 10.1088/0953-8984/11/3/020 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 11 |
| Первая страница | 807 |
| Последняя страница | 820 |
| Выпуск | 3 |
