Search Results - subject:"scaling theory"

Order formation processes of complex systems including different parity order parameters

Hashizume, Yoichiro; Suzuki, Masuo; Okamura, Soichiro - In: Physica A: Statistical Mechanics and its Applications 403 (2014) C, pp. 217-226

In the present study, we focus on the parity of the order parameters and clarify the order formation process in a system including two order parameters. Each order parameter shows different parity under a gauge transformation, namely even and odd order parameters. For example, in a spin-glass...

Persistent link: https://www.econbiz.de/10010873248

Percolation processes in monomer-polyatomic mixtures

Dolz, M.; Nieto, F.; Ramirez-Pastor, A.J. - In: Physica A: Statistical Mechanics and its Applications 374 (2007) 1, pp. 239-250

In this paper, the percolation of mixtures of monomers and polyatomic species (k-mers) on a square lattice is studied. By means of a finite-size scaling analysis, the critical exponents and the scaling collapsing of the fraction of percolating lattices are found. A phase diagram separating a...

Persistent link: https://www.econbiz.de/10010873722

Bicritical phenomena and scaling properties of O(5) model

Hu, Xiao - In: Physica A: Statistical Mechanics and its Applications 321 (2003) 1, pp. 71-80

investigated by Monte Carlo simulations on an O(5) Hamiltonian and a scaling theory. It is shown that the bicritical point is … attractive, biquadratic AF–SC interactions, in contrast to the ε expansions of the renormalization group. The bicritical scaling … theory formulated on the order parameters provides a powerful tool for deriving precise estimates of the bicritical point and …

Persistent link: https://www.econbiz.de/10011061597

Scaling in currency exchange

Galluccio, S.; Caldarelli, G.; Marsili, M.; Zhang, Y.-C. - In: Physica A: Statistical Mechanics and its Applications 245 (1997) 3, pp. 423-436

We study the scaling behavior in currency exchange rates. Our results suggest that they satisfy scaling with an exponent close to 0.5, but that it differs qualitatively from that of a simple random walk. Indeed price variations cannot be considered as independent variables and subtle...

Persistent link: https://www.econbiz.de/10010874905

A scaling model with response errors and intrinsically unscalable respondents

Dayton, C.; Macready, George - In: Psychometrika 45 (1980) 3, pp. 343-356

Persistent link: https://www.econbiz.de/10005166381