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arXiv 1905.04802cond-mat.stat-mech
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吸附-脱附模型中的熵长程有序

Entropic long-range ordering in an adsorption-desorption model

Adam Lipowski, Dorota Lipowska

摘要:

我们研究了一个二维非平衡晶格模型,其中粒子吸附在空的网站和解吸时,相邻粒子的数量大于一个给定的阈值。在一定的参数范围内,该模型表现出类似于某些硬核系统的熵序。然而,与硬核系统相反,随着粒子密度的增加,有序性被破坏。在我们的模型的异质版本中,出现了一个具有缓慢动力学的区域,这可能表明形成了某种玻璃结构。

英文摘要:

We examine a two-dimensional nonequilibrium lattice model where particles adsorb at empty sites and desorb when the number of neighbouring particles is greater than a given threshold. In a certain range of parameters the model exhibits entropic ordering similar to some hard-core systems. However, contrary to hard-core systems, upon increasing the density of particles the ordering gets destroyed. In the heterogenous version of our model a regime with slow dynamics appears, that might indicate formation of some kind of glassy structures.

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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