| Автор | C E Creffield |
| Автор | P E Kornilovitch |
| Автор | E G Klepfish |
| Автор | E R Pike |
| Автор | Sarben Sarkar |
| Дата выпуска | 1997-05-05 |
| dc.description | A quantum Monte Carlo calculation of the dynamical spin susceptibility in the half-filled 2D Hubbard model is presented for temperature T = 0.2t and an intermediate on-site repulsion U = 4t. Using the singular-value decomposition technique we succeed in analytically continuing the Matsubara Green's function into the real-frequency domain and in deriving the spectral representation for longitudinal and transverse spin susceptibility. The simulation results, while contradicting the random-phase approximation prediction of antiferromagnetic long-range order at this temperature, are in agreement with an extension of the self-consistent renormalization approach of Moriya. The static susceptibility calculated using this technique is qualitatively consistent with the simulation results. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Frequency-dependent spin susceptibility in the two-dimensional Hubbard model |
| Тип | lett |
| DOI | 10.1088/0953-8984/9/18/003 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 9 |
| Первая страница | L267 |
| Последняя страница | L273 |
| Аффилиация | C E Creffield; Department of Physics, King's College London, Strand, London WC2R 2LS, UK |
| Аффилиация | P E Kornilovitch; Department of Physics, King's College London, Strand, London WC2R 2LS, UK |
| Аффилиация | E G Klepfish; Department of Physics, King's College London, Strand, London WC2R 2LS, UK |
| Аффилиация | E R Pike; Department of Physics, King's College London, Strand, London WC2R 2LS, UK |
| Аффилиация | Sarben Sarkar; Department of Physics, King's College London, Strand, London WC2R 2LS, UK |
| Выпуск | 18 |
