Erratum: Variability of collective dynamics in random tree networks of strongly coupled stochastic excitable elements [Phys. Rev. E 98, 052303 (2018)]

Figure 8

Normalized threshold current, ${\mathcal{R}}^{-1}(\kappa ,\left\{{\mathcal{D}}_k\right\},\left\{h_k\right\})=J_{\text{th}}(\kappa ,\left\{{\mathcal{D}}_k\right\},\left\{h_k\right\})/J_{\mathrm{AH}}$ as a function of coupling strength $\kappa$ for two tree network ensembles. (a) Curves for all 25 full binary trees of Fig. 4 (of our paper). (b) The same for 50 general binary trees with all possible numbers of nodes and leaf nodes with a maximal number of generations $G=3$. The curves are color coded according to the tree's normalized threshold currents in the strong-coupling limit ${\mathcal{R}}_{\infty ,k}^{-1}={\mathcal{N}}_k/{\mathcal{H}}_k$. The dashed horizontal lines show the value of the applied constant current $J=38.5\mu \mathrm{A}/{\mathrm{cm}}^2$ used for stochastic simulations in Fig. 9 (of the original paper).