| Автор | Li Peng-Fei |
| Автор | Chen Yu-Guang |
| Автор | Chen Hong |
| Дата выпуска | 2007-04-01 |
| dc.description | By employing the exact diagonalization method, we investigate the low-energy behaviour of the dimerized spinless fermion chains with quasiperiodic modulation. It is found that for off-diagonal modulation, the energy gap with length N scales as exp(−cN<sup>ω</sup>) with nonuniversal exponent ω if the dimerization is nonzero. However, for diagonal modulation, there may exist a critical dimerization δ<sub>c</sub> beyond which the system exhibits a metal–insulator transition. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Scaling Properties of Energy Gap in Dimerized Spinless Fermion Chains with Quasiperiodic Modulation |
| Тип | paper |
| DOI | 10.1088/0256-307X/24/4/052 |
| Electronic ISSN | 1741-3540 |
| Print ISSN | 0256-307X |
| Журнал | Chinese Physics Letters |
| Том | 24 |
| Первая страница | 1035 |
| Последняя страница | 1038 |
| Аффилиация | Li Peng-Fei; Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 |
| Аффилиация | Chen Yu-Guang; Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 |
| Аффилиация | Chen Hong; Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 |
| Выпуск | 4 |
