Low-energy properties of aperiodic quantum spin chains
| dc.creator | Vieira, André P. | |
| dc.date | 2004-03-25 | |
| dc.date | 2005-02-24 | |
| dc.date.accessioned | 2026-07-07T02:57:16Z | |
| dc.date.available | 2026-07-07T02:57:16Z | |
| dc.description | We investigate the low-energy properties of antiferromagnetic quantum XXZ spin chains with couplings following two-letter aperiodic sequences, by an adaptation of the Ma-Dasgupta-Hu renormalization-group method. For a given aperiodic sequence, we argue that in the easy-plane anisotropy regime, intermediate between the XX and Heisenberg limits, the general scaling form of the thermodynamic properties is essentially given by the exactly known XX behavior, providing a classification of the effects of aperiodicity on XXZ chains. As representative illustrations, we present analytical and numerical results for the low-temperature thermodynamics and the ground-state correlations for couplings following the Fibonacci quasiperiodic structure and a binary Rudin-Shapiro sequence, whose geometrical fluctuations are similar to those induced by randomness. | |
| dc.description | Published version | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0403635 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0403635 | |
| dc.identifier | Phys. Rev. Lett. 94, 077201 (2005) | |
| dc.identifier | doi:10.1103/PhysRevLett.94.077201 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23598 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Statistical Mechanics | |
| dc.title | Low-energy properties of aperiodic quantum spin chains | |
| dc.type | text |