Thermodynamic properties of the XX model in a chain with a period two and three coupling
| dc.creator | Abad, Julio | |
| dc.date | 2005-09-09 | |
| dc.date | 2007-03-13 | |
| dc.date.accessioned | 2026-07-07T07:51:14Z | |
| dc.date.available | 2026-07-07T07:51:14Z | |
| dc.description | The exact solutions for the energy spectrum of the XX model with a periodic coupling and an external transverse magnetic field $h$ are obtained. The diagonalization procedure is discussed, and analytical and numerical solutions are given. Using the solutions for period-two coupling, the free energy, entropy, and specific heat are calculated as functions of temperature and applied transverse external magnetic field. Their expressions show that below a particular value $v$ and above a value $u$ of the magnetic field $|h|$, the entropy and the specific heat vanish exponentially in the low temperature limit. | |
| dc.description | 20 pages, 9 figures, new references added | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0509250 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0509250 | |
| dc.identifier | doi:10.1140/epjb/e2007-00065-y | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/125441 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Thermodynamic properties of the XX model in a chain with a period two and three coupling | |
| dc.type | text |