Comment on ``Deterministic equations of motion and phase ordering dynamics''

Details Comment on ``Deterministic equations of motion and phase ordering dynamics'' Comment on ``Deterministic equations of motion and phase ordering dynamics''

2002-09-30

arxiv.org/abs/cond-mat/0209681v1

Phys. Rev. E 65, 058101 (2002)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevE.65.058101

Zheng [Phys. Rev. E {\bf 61}, 153 (2000), cond-mat/9909324] claims that phase ordering dynamics in the microcanonical $\phi^4$ model displays unusual scaling laws. We show here, performing more careful numerical investigations, that Zheng only observed transient dynamics mostly due to the corrections to scaling introduced by lattice effects, and that Ising-like (model A) phase ordering actually takes place at late times. Moreover, we argue that energy conservation manifests itself in different corrections to scaling.

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