Contact process in disordered and periodic binary two-dimensional lattices.
Contact process in disordered and periodic binary two-dimensional lattices.
复制标题
无序和周期性二元二维晶格中的接触过程。
DOI:
10.1103/physreve.78.041117
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Fallert SV
中科院分区:
文献类型:
--
作者:
Fallert SV
The critical behavior of the contact process (CP) in disordered and periodic binary two-dimensional (2D) lattices is investigated numerically by means of Monte Carlo simulations as well as via an analytical approximation and standard mean field theory. Phase-separation lines calculated numerically are found to agree well with analytical predictions around the homogeneous point. For the disordered case, values of static scaling exponents obtained via quasistationary simulations are found to change with disorder strength. In particular, the finite-size scaling exponent of the density of infected sites approaches a value consistent with the existence of an infinite-randomness fixed point as conjectured before for thedisordered CP. At the same time, both dynamical and static scaling exponents are found to coincide with the values established for the homogeneous case thus confirming that the contact process in a heterogeneous environment belongs to the directed percolation universality class.
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影响因子:
2.4
作者:
M. J. Oliveira
通讯作者:
M. J. Oliveira
影响因子:
2.4
作者:
Moreira, AG;Dickman, R
通讯作者:
Dickman, R
影响因子:
8.6
作者:
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通讯作者:
Vanderzande, C
DOI:
10.1088/0305-4470/32/44/102
发表时间:
1999
期刊:
Journal of Physics A
影响因子:
--
作者:
J. R. G. Mendonça
通讯作者:
J. R. G. Mendonça
影响因子:
4.8
作者:
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通讯作者:
Gilligan, CA