Zobrazeno 1 - 10
of 70
pro vyhledávání: '"S.S. Martinos"'
Autor:
Ioannis N. Velonakis, S.S. Martinos
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 390:3369-3384
We use a recently developed cluster algorithm for the Baxter–Wu model to study characteristic features of its behavior. Magnetic scaling properties of the model are investigated for second-order phase transitions. We improve significantly the accur
Autor:
Ioannis N. Velonakis, S.S. Martinos
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 390:24-30
We propose a new cluster algorithm for the Baxter–Wu model that significantly reduces critical slowing down. We examine the behavior of the created clusters as we vary the temperature and then specify dynamic exponents. Comparison is made with the
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 384:368-376
Using Wang–Landau entropic sampling we study the Ising model in the framework of microcanonical ensemble (fixed magnetization). We are working for lattice size up to 1500 × 1500 in two dimensions and 100 × 100 × 100 in three dimensions. As we ap
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 373:376-386
The critical properties of the conserved-order-parameter (COP) version of the three-dimensional Ising model with zero magnetization were investigated by means of the Monte Carlo (MC) Wang–Landau algorithm. The study was carried out in appropriate r
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 366:273-280
We study Baxter–Wu triangular model with fixed magnetization in the framework of canonical and microcanonical ensemble, constructing the density of states by Wang–Landau algorithm. We use an approximation similar to a recently developed scheme (c
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 355:393-407
Using a finite-size phenomenological theory we investigate the behavior of the Baxter–Wu model for both first- and second-order transitions. In order to distinguish between the two kinds of transition we study the finite-size scaling behavior of th
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 352:447-458
We use the recently developed critical minimum energy subspace (CrMES) approximation scheme to study the critical behavior of the Baxter–Wu model. This scheme uses only a properly determined part of the energy spectrum and allows us to obtain high
Publikováno v:
International Journal of Modern Physics C. 15:729-740
We present a variation of the N-fold way algorithm, which improves efficiency when one combines the Wang–Landau method with the N-fold way. It is shown that the new version of the N-fold way algorithm has good performance when used for importance s
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 331:182-188
The distribution function PL(m) of the order parameter for the Baxter–Wu model is studied using blocks of linear dimension L of a larger triangular lattice. At a given temperature, we use the Metropolis algorithm for the generation of a sample of c
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 327:349-356
The short-time behaviour of the critical two-dimensional Ising model is studied for the Bortz–Kalos–Lebowitz N -fold way algorithm (BKL algorithm). For square lattices of linear sizes L=110, 128, 140, 170 , and 200, we calculate the short-time cr