期刊
PHYSICAL REVIEW E
卷 89, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.89.032813
关键词
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资金
- National Natural Science Foundation of China [11222543, 11135001, 11375074, 91024026]
- Program for New Century Excellent Talents in University [NCET-11-0070]
- Natural Science Foundation of Fujian Province of China [2013J05007]
- Research Foundation of Fuzhou University [0110-600607]
We propose a dynamic model for a system consisting of self-propelled agents in which the influence of an agent on another agent is weighted by geographical distance. A parameter a is introduced to adjust the influence: The smaller value of a means that the closer neighbors have a stronger influence on the moving direction. We find that there exists an optimal value of a leading to the highest degree of direction consensus. The value of optimal a increases as the system size increases, while it decreases as the absolute velocity, the sensing radius, and the noise amplitude increase.
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