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arXiv 0803.3315cond-mat.stat-mech
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限制性固体-固体生长模型的平均场近似

Mean-field approximations for the restricted solid-on-solid growth models

A. C. Barato, M. J. de Oliveira

摘要:

我们研究模型的表面生长与润湿和粗糙化的过渡,使用简单的和对平均场近似。简单的平均场方程的精确求解,他们预测的粗糙化过渡和正确的增长指数的区域中的相图。对平均场方程,这是数值求解,显示出更好的符合数值模拟,并正确地预测了不断增长的接口,在移动阶段的速度恒定。当满足细致平衡时,对平均场就成为模型的精确解。

英文摘要:

We study models for surface growth with a wetting and a roughening transition using simple and pair mean-field approximations. The simple mean-field equations are solved exactly and they predict the roughening transition and the correct growth exponents in a region of the phase diagram. The pair mean-field equations, which are solved numerically, show a better accordance with numerical simulation and correctly predicts a growing interface with constant velocity at the moving phase. Also, when detailed balance is fulfilled, the pair mean field becomes the exact solution of the model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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