Criticality of Epidemic Spreading in Mobile Individuals Mediated by Environment

HE Min-Hua; ZHANG Duan-Ming; FANG Pin-Jie; LI Zhi-Cong; WANG Hai-Yan

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Criticality of Epidemic Spreading in Mobile Individuals Mediated by Environment

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We investigate the critical behaviour of an epidemical model in a diffusive population mediated by a static vector environment on a 2D network. It is found that this model presents a dynamical phase transition from disease-free state to endemic state with a finite population density. Finite-size and short-time dynamic scaling relations are used to determine the critical population density and the critical exponents characterizing the behaviour near the critical point. The results are compatible with the universality class of directed percolation coupled to a conserved diffusive field with equal diffusion constants.

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《中国物理快报：英文版》 |2009年第1期|47-50|共4页
作者
HE Min-Hua; ZHANG Duan-Ming; FANG Pin-Jie; LI Zhi-Cong; WANG Hai-Yan;
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Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

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正文语种 chi
中图分类物理学;
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Criticality of Epidemic Spreading in Mobile Individuals Mediated by Environment

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