Universality in the pair contact process with diffusion

被引:26
作者
Barkema, GT [1 ]
Carlon, E
机构
[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands
[2] Univ Saarland, D-66041 Saarbrucken, Germany
来源
PHYSICAL REVIEW E | 2003年 / 68卷 / 03期
关键词
D O I
10.1103/PhysRevE.68.036113
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The pair contact process with diffusion is studied by means of multispin Monte Carlo simulations and density matrix renormalization group calculations. Effective critical exponents are found to behave nonmonotonically as functions of time or of system length and extrapolate asymptotically towards values consistent with the directed percolation universality class. We argue that an intermediate regime exists where the effective critical dynamics resembles that of a parity conserving process.
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页数:7
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