Search Results - subject:"Ising Model"

Importance of positive feedbacks and overconfidence in a self-fulfilling Ising model of financial markets

Sornette, Didier; Zhou, Wei-Xing - In: Physica A: Statistical Mechanics and its Applications 370 (2006) 2, pp. 704-726

Following a long tradition of physicists who have noticed that the Ising model provides a general background to build … structure of a dynamical Ising model in which agents have two opinions (buy or sell) with coupling coefficients, which evolve in …

Persistent link: https://www.econbiz.de/10010873604

Test of universality in anisotropic 3D Ising model

Sumour, M.A.; Stauffer, D.; Shabat, M.M.; El-Astal, A.H. - In: Physica A: Statistical Mechanics and its Applications 368 (2006) 1, pp. 96-100

Chen and Dohm predicted theoretically in 2004 that the widely believed universality principle is violated in the Ising … model on the simple cubic lattice with more than only six nearest neighbours. Schulte and Drope by Monte Carlo simulations … this universality for the susceptibility ratio near the critical point. For this purpose we study first the standard Ising …

Persistent link: https://www.econbiz.de/10010874188

Equilibrium and metastability in the Shore–Sethna model

Carubelli, Marianela; Tamarit, Francisco A. - In: Physica A: Statistical Mechanics and its Applications 371 (2006) 1, pp. 144-149

The Shore–Sethna model is one of the simplest spin models including frustration at microscopic level. It consists of a three-dimensional system of Ising spins with ferromagnetic nearest-neighbors and antiferromagnetic next-nearest-neighbors interactions, and the competition between these two...

Persistent link: https://www.econbiz.de/10010874532

Baxter–Wu model with fixed magnetization

Martinos, S.S.; Malakis, A.; Hadjiagapiou, I. - In: Physica A: Statistical Mechanics and its Applications 366 (2006) C, pp. 273-280

conclusions corroborate analogous conclusions for the square Ising model: An unconventional temperature-driven first-order phase …

Persistent link: https://www.econbiz.de/10010874776

Ising-based model of opinion formation in a complex network of interpersonal interactions

Grabowski, A.; Kosiński, R.A. - In: Physica A: Statistical Mechanics and its Applications 361 (2006) 2, pp. 651-664

In our work the process of opinion formation in the human population, treated as a scale-free network, is modeled and investigated numerically. The individuals (nodes of the network) are characterized by their authorities, which influence the interpersonal interactions in the population....

Persistent link: https://www.econbiz.de/10011059087

Exact results of a mixed spin-1/2 and spin-S Ising model on a bathroom tile (4–8) lattice: Effect of uniaxial single-ion anisotropy

Strečka, Jozef - In: Physica A: Statistical Mechanics and its Applications 360 (2006) 2, pp. 379-390

Effect of uniaxial single-ion anisotropy upon magnetic properties of a mixed spin-1/2 and spin-S (S⩾1) Ising model on a …

Persistent link: https://www.econbiz.de/10011060513

Critical behaviour of a three-dimensional one-component magnet in strong and weak external fields at T>Tc

Kozlovskii, M.P.; Pylyuk, I.V.; Prytula, O.O. - In: Physica A: Statistical Mechanics and its Applications 369 (2006) 2, pp. 562-576

The influence of a homogeneous external field on a three-dimensional uniaxial magnet behaviour near the critical point is investigated on the microscopic level by the nonperturbative collective variable (CV) method using the ρ4 model. The research is carried out in the high-temperature region....

Persistent link: https://www.econbiz.de/10011060948

Dynamical finite-size scaling function of the four dimensional ising model for Creutz algorithm

Merdan, Z.; Gunen, A.; Çavdar, Ş. - In: Physica A: Statistical Mechanics and its Applications 359 (2006) C, pp. 415-422

Dynamical critical exponents for the four dimensional Ising model are computed on a cellular automaton from the …-size scaling, for which it was adopted four dimensional Ising model. …

Persistent link: https://www.econbiz.de/10011061220

On the metastable autocorrelation and susceptibility of Markovian systems

Báez, G.; Méndez-Sánchez, R.A. - In: Physica A: Statistical Mechanics and its Applications 372 (2006) 2, pp. 362-367

We show numerically that the metastable autocorrelation of the magnetization in a bidimensional Ising model with …

Persistent link: https://www.econbiz.de/10011062298

An Ising model of transcription polarity in bacterial chromosomes

Baran, Robert H.; Ko, Hanseok - In: Physica A: Statistical Mechanics and its Applications 362 (2006) 2, pp. 403-422

leading strand of replication. An Ising model is proposed to quantify these two phenomena by analogy to the behavior of …

Persistent link: https://www.econbiz.de/10011063148