Figure 4
Evolution of the fractions of links with: \(\sigma _{ij}=\sigma _{\alpha }=10^{-11} \Omega ^{-1}\) (grey), \(\sigma _{ij}=\sigma _{\beta }=10^{-3} \Omega ^{-1}\) (orange), \(\sigma _{ij}=\sigma _{\gamma }=2 \times 10^{-3} \Omega ^{-1}\) (navy) and \(\sigma _{ij}=\sigma _{\delta }=4 \times 10^{-3} \Omega ^{-1}\) (purple) as a function of the MC steps. Black dashed vertical lines separate the three simulation phases. At the start of the simulation, one can see the initial probability for the abundance of links having conductivity equal to \(\sigma _{\alpha }, \sigma _{\beta }, \sigma _{\gamma }, \sigma _{\delta }\). The initial amount of each conductance level is chosen in a range of values which allow for a sufficient degree of current percolation.
