Interaction Strength and a Generalized Bak-Sneppen Evolution
Model

Chin. Phys. Lett.

2002, Vol. 19

Issue (10): 1420-1423 DOI:

Original Articles

Interaction Strength and a Generalized Bak-Sneppen Evolution Model

LI Wei;CAI Xu

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079

Cite this article:

LI Wei, CAI Xu 2002 Chin. Phys. Lett. 19 1420-1423

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Abstract The Bak-Sneppen evolution model is generalized in terms of a new concept and quantity, interaction strength. Based on a quantitative definition, the interaction strength describes the strength of the interaction between the nearest neighbouring individuals in the model. Self-organized criticality is observed for the generalized model with ten different values of interaction strength. The gap equation governing the self-organization is derived. It is also found that the self-organized threshold depends on the value of the interaction strength.

Keywords: 05.65.+b 45.70.Ht

Published: 01 October 2002

PACS:	05.65.+b	(Self-organized systems)
	45.70.Ht	(Avalanches)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I10/01420

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