Nonequilibrium roughening transition in a simple model of fungal growth in 1+1 dimensions

被引:35
作者
Lopez, JM [1 ]
Jensen, HJ [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Math, London SW7 2BZ, England
关键词
D O I
10.1103/PhysRevLett.81.1734
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We introduce a simple model of yeastlike growth of fungi colonies, which exhibits a continuous roughening transition far from equilibrium from a smooth (alpha = 0) to a rough phase (alpha = 1/2) in I + 1 dimensions. At the transition some scaling exponents are calculated by mapping the problem onto a directed percolation process. The model reproduces the roughening transition observed in some experiments of fungal growth. [S0031-9007(98)06963-4].
引用
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页码:1734 / 1737
页数:4
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