Short-time critical dynamics and universality on a two-dimensional Triangular Lattice

Details Short-time critical dynamics and universality on a two-dimensional Triangular Lattice Short-time critical dynamics and universality on a two-dimensional Triangular Lattice

2001-02-27

arxiv.org/abs/cond-mat/0102500v1

Physics

Condensed Matter

Soft Condensed Matter

LaTex, 11 pages and 10 figures, to be published in Physica A

Scientific paper

10.1016/S0378-4371(01)00041-3

Critical scaling and universality in short-time dynamics for spin models on a two-dimensional triangular lattice are investigated by using Monte Carlo simulation. Emphasis is placed on the dynamic evolution from fully ordered initialstates to show that universal scaling exists already in the short-time regime in form of power-law behavior of the magnetization and Binder cumulant. The results measured for the dynamic and static critical exponents, $\theta$, $z$, $\beta$ and $\nu$, confirm explicitly that the Potts models on the triangular lattice and square lattice belong to the same universality class. Our critical scaling analysis strongly suggests that the simulation for the dynamic relaxation can be used to determine numerically the universality.

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