中国物理B ›› 2023, Vol. 32 ›› Issue (9): 98902-098902.doi: 10.1088/1674-1056/acd685
Yan-Li Gao(高彦丽)1, Hai-Bo Yu(于海波)1, Jie Zhou(周杰)2, Yin-Zuo Zhou(周银座)3, and Shi-Ming Chen(陈世明)1,†
Yan-Li Gao(高彦丽)1, Hai-Bo Yu(于海波)1, Jie Zhou(周杰)2, Yin-Zuo Zhou(周银座)3, and Shi-Ming Chen(陈世明)1,†
摘要: We propose a model of edge-coupled interdependent networks with directed dependency links (EINDDLs) and develop the theoretical analysis framework of this model based on the self-consistent probabilities method. The phase transition behaviors and parameter thresholds of this model under random attacks are analyzed theoretically on both random regular (RR) networks and Erdös-Rényi (ER) networks, and computer simulations are performed to verify the results. In this EINDDL model, a fraction β of connectivity links within network B depends on network A and a fraction (1-β) of connectivity links within network A depends on network B. It is found that randomly removing a fraction (1-p) of connectivity links in network A at the initial state, network A exhibits different types of phase transitions (first order, second order and hybrid). Network B is rarely affected by cascading failure when β is small, and network B will gradually converge from the first-order to the second-order phase transition as β increases. We present the critical values of β for the phase change process of networks A and B, and give the critical values of p and β for network B at the critical point of collapse. Furthermore, a cascading prevention strategy is proposed. The findings are of great significance for understanding the robustness of EINDDLs.
中图分类号: (Complex systems)