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A renormalization group approach to crowd psychology and inter-group coupling in social many-body systems

Title
A renormalization group approach to crowd psychology and inter-group coupling in social many-body systems
Authors
Kim C.K.Lee K.-J.-B.Chung M.-H.
Ewha Authors
이공주복
SCOPUS Author ID
이공주복scopus
Issue Date
2012
Journal Title
Chinese Science Bulletin
ISSN
1001-6538JCR Link
Citation
vol. 57, no. 41308, pp. 247 - 252
Indexed
SCOPUS WOS scopus
Abstract
By adopting majority rule within a renormalization group approach, we can show that the strength of inter-group interaction in a social system either grows or shrinks monotonically with increasing gc with group size regardless of the initial strength. Our approach clearly demonstrates that the phenomena of crowd psychology, such as an extreme anti-reaction between different ethnic or ideological groups, could be a consequence of the many-particle nature of social systems when the initial strength of the interaction is larger than a critical value. The effect of neutral opinion holders is critically examined using the spin-one Ising model. The critical size of the population of neutral opinion holders, that can prevent crowd polarization, depends on the block spin rule. © 2012 Science China Press and Springer-Verlag Berlin Heidelberg.
DOI
10.1007/s11434-011-4882-4
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자연과학대학 > 물리학전공 > Journal papers
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