• Acta Physica Sinica
  • Vol. 68, Issue 18, 180503-1 (2019)
Rui Shu, Wei Chen, and Jing-Hua Xiao*
DOI: 10.7498/aps.68.20190308 Cite this Article
Rui Shu, Wei Chen, Jing-Hua Xiao. Optimizing synchronizability of multiplecoupled star networks[J]. Acta Physica Sinica, 2019, 68(18): 180503-1 Copy Citation Text show less
Coupled star networks: (a) Single star network; (b) two coupled networks; (c) multiple coupled networks.耦合星型网络示意图 (a)单个星型网络; (b)两个耦合星型网络; (c)多个耦合星型网络
Fig. 1. Coupled star networks: (a) Single star network; (b) two coupled networks; (c) multiple coupled networks.耦合星型网络示意图 (a)单个星型网络; (b)两个耦合星型网络; (c)多个耦合星型网络
Numerical results for , . (a)−(e) Average frequency versus coupling strength for two coupled star networksS1 (red) and S2 (blue). The thick and thin lines respectively represent the center nodes and leaf nodes. (f) The critical coupling strength versus . The value of is shown according to the colorbar., 情况下的数值计算结果 (a)−(e)不同中心节点频率情况下的节点平均频率随耦合强度的变化, 其中红线和蓝线分别表示(a)−(e)不同中心节点频率情况下的节点平均频率随耦合强度的变化, 其中红线和蓝线分别表示S1和S2的节点, 粗线和细线分别表示中心节点和叶子节点; (f)系统临界耦合强度随值的变化, 越靠近冷色调表示临界耦合强度越小
Fig. 2. Numerical results for , . (a)−(e) Average frequency versus coupling strength for two coupled star networksS1 (red) and S2 (blue). The thick and thin lines respectively represent the center nodes and leaf nodes. (f) The critical coupling strength versus . The value of is shown according to the colorbar. , 情况下的数值计算结果 (a)−(e)不同中心节点频率情况下的节点平均频率随耦合强度的变化, 其中红线和蓝线分别表示(a)−(e)不同中心节点频率情况下的节点平均频率随耦合强度的变化, 其中红线和蓝线分别表示S1S2的节点, 粗线和细线分别表示中心节点和叶子节点; (f)系统临界耦合强度 随 值的变化, 越靠近冷色调表示临界耦合强度越小
(a)−(c)versus . (d) versus , where ; the parameter space can be divided into different regions according to the value of ; the red lines denote ; the black lines denote ; the white lines denote .(a)−(c)分别表示随值的变化情况; (d) 随值的变化情况, , 参数平面被分为不同的区域, 两条红线表示与相等的区域, 两条黑线表示与相等的区域, 白线表示与相等的区域
Fig. 3. (a)−(c) versus . (d) versus , where ; the parameter space can be divided into different regions according to the value of ; the red lines denote ; the black lines denote ; the white lines denote . (a)−(c)分别表示 随 值的变化情况; (d) 随 值的变化情况, , 参数平面被分为不同的区域, 两条红线表示 与 相等的区域, 两条黑线表示 与 相等的区域, 白线表示 与 相等的区域
Relationship between and .系统的临界耦合强度随值的变化情况
Fig. 4. Relationship between and . 系统的临界耦合强度 随 值的变化情况
Logarithmic variance of average frequency in parameter space of coupling strength for : (a) ; (b) ; (c) ; (d) . The smaller logarithmic variance of average frequency indicates better synchronization. Black line, white line and green line represent the theoretical critical coupling strength for synchroniation, , , respectively.时, 不同耦合强度参数区间下, 节点平均频率的方差的对数值 (a) ; (b) ; (c) ; (d) , 颜色越靠近冷色调表示系统的同步程度越高, 黑线、白线、绿线分别表示理论推导出的, ,
Fig. 5. Logarithmic variance of average frequency in parameter space of coupling strength for : (a) ; (b) ; (c) ; (d) . The smaller logarithmic variance of average frequency indicates better synchronization. Black line, white line and green line represent the theoretical critical coupling strength for synchroniation , , , respectively. 时, 不同耦合强度参数区间下, 节点平均频率的方差的对数值 (a) ; (b) ; (c) ; (d) , 颜色越靠近冷色调表示系统的同步程度越高, 黑线、白线、绿线分别表示理论推导出的 , ,
Numerical results and theoretical results for , , [0.77, 0.80, 0.19, 0.49]: (a) The critical coupling strength for synchronization versus the summation of central node frequencies; the numerical results are shown in the circle and the theoretical ones are shown in the solid lines; (b) the logarithmic variance of average frequency in parameter space of for given .参数为[0.77, 0.80, 0.19, 0.49]时的数值计算结果 (a)控制所有耦合强度相等时, 系统的同步临界耦合强度随的和的关系图, 数值计算结果如圆圈所示, 理论推导结果如实线所示; (b)当固定, 改变参数时, 所有节点平均频率的方差的对数结果, 绿线和白线分别是理论得到的
Fig. 6. Numerical results and theoretical results for , , [0.77, 0.80, 0.19, 0.49]: (a) The critical coupling strength for synchronization versus the summation of central node frequencies; the numerical results are shown in the circle and the theoretical ones are shown in the solid lines; (b) the logarithmic variance of average frequency in parameter space of for given . 参数为 [0.77, 0.80, 0.19, 0.49]时的数值计算结果 (a)控制所有耦合强度相等时, 系统的同步临界耦合强度随 的和的关系图, 数值计算结果如圆圈所示, 理论推导结果如实线所示; (b)当固定 , 改变参数 时, 所有节点平均频率的方差的对数结果, 绿线和白线分别是理论得到的
Rui Shu, Wei Chen, Jing-Hua Xiao. Optimizing synchronizability of multiplecoupled star networks[J]. Acta Physica Sinica, 2019, 68(18): 180503-1
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