| dc.creator | Guimarães, P. R. C. | |
| dc.creator | Plascak, J. A. | |
| dc.creator | Bonfim, O. F. de Alcantara | |
| dc.creator | Florencio, J. | |
| dc.date | 2018-04-26T17:17:10Z | |
| dc.date | 2018-04-26T17:17:10Z | |
| dc.date | 2015-10-07 | |
| dc.date.accessioned | 2023-09-27T22:08:49Z | |
| dc.date.available | 2023-09-27T22:08:49Z | |
| dc.identifier | 24700053 | |
| dc.identifier | https://doi.org/10.1103/PhysRevE.92.042115 | |
| dc.identifier | http://www.locus.ufv.br/handle/123456789/19177 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8971313 | |
| dc.description | We study the effects of next-nearest-neighbor (NNN) interactions on the dynamics of the one-dimensional spin-1/2 transverse Ising model in the high-temperature limit. We use exact diagonalization to obtain the time-dependent transverse correlation function and the corresponding spectral density for a tagged spin. Our results for chains of 13 spins with periodic boundary conditions produce results which are valid in the infinite-size limit. In general we find that the NNN coupling produces slower dynamics accompanied by an enhancement of the central mode behavior. Even in the case of a strong transverse field, if the NNN coupling is sufficiently large, then there is a crossover from collective mode to central mode behavior. We also obtain several recurrants for the continued fraction representation of the relaxation function. | |
| dc.format | pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Physical Review E | |
| dc.relation | v. 92, Iss. 4, p. 042115, October 2015 | |
| dc.rights | American Physical Society | |
| dc.subject | Next-nearest-neighbor | |
| dc.subject | Transverse Ising model | |
| dc.title | Dynamics of the transverse Ising model with next-nearest-neighbor interactions | |
| dc.type | Artigo | |
