Nonequilibrium critical relaxation of structurally disordered systems in the short-time regime: Renormalization group description and computer simulation
- Omsk Dostoevsky State University (Russian Federation)
The influence of nonequilibrium initial states on the evolution of anisotropic systems with quenched uncorrelated structural defects at the critical point is studied. The field-theoretical description of the nonequilibrium critical behavior of 3D systems is obtained for the first time, and the dynamic critical exponent of the short-time evolution in the two-loop approximation without the use of {epsilon} expansion is calculated. The values of dynamic critical exponents calculated using the series resummation methods are compared with the results of computer simulation of nonequilibrium critical behavior of the 3D disordered Ising model in the short-time regime. It is demonstrated that the values of the critical exponents calculated in this paper are in better agreement with the results of computer simulation than the results of application of {epsilon} expansion.
- OSTI ID:
- 21455262
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 110, Issue 2; Other Information: DOI: 10.1134/S1063776110020093; Copyright (c) 2010 Pleiades Publishing, Ltd.; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hysteresis, avalanches, and disorder-induced critical scaling: A renormalization-group approach
Analysis of the Effect of Different Initial States and Structural Defects on the Characteristics of the Nonequilibrium Critical Behavior of the 3D Ising Model