Program of Introducing Talents of Discipline to UniversitiesMinistry of Education, China - 111 Project [B08033]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11505071]
机构署名：
本校为其他机构
院系归属：
物理科学与技术学院
摘要：
In this paper we present our study on the critical behavior of a stochastic anisotropic Bak–Sneppen (saBS) model, in which a parameter α is introduced to describe the interaction strength among nearest species. We estimate the threshold fitness fc and the critical exponent τr by numerically integrating a master equation for the distribution of avalanche spatial sizes. Other critical exponents are then evaluated from previously known scaling relations. The numerical results are in good agreement with the counterparts yielded by the Monte Carl...
