FIRST-ORDER TRANSITION IN A QUANTUM ISING-MODEL WITH P-SPIN INTERACTIONS AND A RANDOM-FIELD

Authors
MA YQ WANG ZD SHENG L ZHU JX GONG CD
Citation
Yq. Ma et al., FIRST-ORDER TRANSITION IN A QUANTUM ISING-MODEL WITH P-SPIN INTERACTIONS AND A RANDOM-FIELD, Communications in Theoretical Physics, 27(4), 1997, pp. 419-422
Citations number
38
Categorie Soggetti
Physics
Journal title
Communications in Theoretical Physics → ACNP
ISSN journal
02536102
Volume
27
Issue
4
Year of publication
1997
Pages
419 - 422
Database
ISI
SICI code
0253-6102(1997)27:4<419:FTIAQI>2.0.ZU;2-#
Abstract
We study a quantum transverse Ising model with p-spin interactions in the presence of a random field. The formulation for the free energy of the system is derived by making use of the Suzuki-Trotter approach wi th the thermodynamic perturbation theory, and the first-order transiti ons are obtained in the limit p --> infinity.