Nonuniversality in short-time critical dynamics

Abstract

We study behaviour of dynamical critical exponents of the two-dimensional Ising model with a line of defects. Simulations done at an early time (first 100 Monte Carlo steps) reveal that the critical exponent of Janssen et al (Z. Phys. B 73 539) depends on the strength of the exchange coupling constant (J') of the altered line. On the other hand, our simulations permit us to conclude that the dynamical critical exponent z is not sensitive to changes in J'. In adition, we investigate the possible invariance of the anomalous dimension of the magnetization at the beginning of the process.

8 figures

References in corpus (4)

• Conformal invariance and linear defects in the two-dimensional Ising model
• Short time dynamics of a two dimensional majority vote model
• Monte Carlo Measurement of the Global Persistence Exponent
• The short-time behaviour of a kinetic Ashkin-Teller model on the critical line

Cited by in corpus (5)

• Critical phenomena at perfect and non-perfect surfaces
• Universality and scaling study of the critical behavior of the two-dimensional Blume-Capel model in short-time dynamics
• Short-time critical dynamics of the Baxter-Wu model
• Nonequilibrium critical dynamics in inhomogeneous systems
• Dynamic critical exponents of the Ising model with multispin interactions