Search Results - subject:"Ashkin–Teller"

New effective field theory for the Ashkin–Teller model

Santos, Jander P.; Sá Barreto, F.C. - In: Physica A: Statistical Mechanics and its Applications 421 (2015) C, pp. 316-329

Spin correlation identities for the Ashkin–Teller model are derived. From the correlation identities effective field …

Persistent link: https://www.econbiz.de/10011194080

Phase diagram of the two-dimensional ferromagnetic three-color Ashkin–Teller model

Piolho, F.A.P.; da Costa, F.A.; Bezerra, C.G.; Mariz, A.M. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 7, pp. 1538-1544

In the present work we study the critical properties of the ferromagnetic three-color Ashkin–Teller model (3AT) by …

Persistent link: https://www.econbiz.de/10010590468

Who is left, who is right?

Sznajd-Weron, Katarzyna; Sznajd, Józef - In: Physica A: Statistical Mechanics and its Applications 351 (2005) 2, pp. 593-604

leftists and rightists is not enough any longer. The model is based on the Ashkin–Teller idea to assign two Ising spins to each …

Persistent link: https://www.econbiz.de/10011061705

A Monte Carlo study of the anisotropic N=3 Ashkin–Teller model

Drugowich de Felı́cio, J.R.; Chahine, J.; Caticha, N. - In: Physica A: Statistical Mechanics and its Applications 321 (2003) 3, pp. 529-542

The phase diagram of an asymmetric N=3 Ashkin–Teller model is obtained by a numerical analysis which combines Monte …

Persistent link: https://www.econbiz.de/10011061652

A p-spin interaction Ashkin–Teller spin-glass model

Queiroz Jr, I.S.; da Costa, F.A.; Nobre, F.D. - In: Physica A: Statistical Mechanics and its Applications 309 (2002) 1, pp. 106-120

A p-spin interaction Ashkin–Teller spin glass, with three independent Gaussian probability distributions for the …

Persistent link: https://www.econbiz.de/10010591764

The anisotropic Ashkin–Teller model: a renormalization group study

Bezerra, C.G.; Mariz, A.M.; de Araújo, J.M.; da Costa, F.A. - In: Physica A: Statistical Mechanics and its Applications 292 (2001) 1, pp. 429-436

The two-dimensional ferromagnetic anisotropic Ashkin–Teller model is investigated through a real-space renormalization …

Persistent link: https://www.econbiz.de/10011062103

Lebowitz inequalities for Ashkin–Teller systems

Chayes, L; Shtengel, K - In: Physica A: Statistical Mechanics and its Applications 279 (2000) 1, pp. 312-323

We consider the Ashkin–Teller model with negative four-spin coupling but still in the region where the ground state is …

Persistent link: https://www.econbiz.de/10010873405

Graphical representations and cluster algorithms I. Discrete spin systems

Chayes, L.; Machta, J. - In: Physica A: Statistical Mechanics and its Applications 239 (1997) 4, pp. 542-601

Graphical representations similar to the FK representation are developed for a variety of spin-systems. In several cases, it is established that these representations have (FKG) monotonicity properties which enables characterization theorems for the uniqueness phase and the low-temperature phase...

Persistent link: https://www.econbiz.de/10010873701