Dynamics of the random one-dimensional transverse Ising model

Authors
Florencio, J Barreto, FCS
Citation
J. Florencio et Fcs. Barreto, Dynamics of the random one-dimensional transverse Ising model, PHYS REV B, 60(13), 1999, pp. 9555-9560
Citations number
50
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
13
Year of publication
1999
Pages
9555 - 9560
Database
ISI
SICI code
0163-1829(19991001)60:13<9555:DOTROT>2.0.ZU;2-9
Abstract
We study the dynamics of the spin-1/2 random transverse Ising model in the high-temperature limit by means of the method of recurrence relations. We a nalyze two types of disorder: a disorder on the transverse field, and a dis order on the exchange coupling. We find that the dynamics undergoes a cross over from a central peak behavior onto a collective mode behavior as a func tion of the disorder. [S0163-1829(99)04937-1].