Figure 3
From: Easy-hard phase transition in parameter estimation for optical waveguides
(left) Dependence of the absorption coefficient \(\kappa _{\text {crit}}\) which marks the complete vanishing of local minima in the energy landscape as a function of the actual cylinder diameter \(d_{\text {real}}\). It can be seen that the values behave according to the power-law relation given in Eq. (2), and once again both “sides” of the energy landscape behave slightly different. (inset) the same on a double-logarithmic scale. (right, inset) The total number of local minima \(N_{\min }\) as a function of the absorption coefficient \(\kappa \). (right, main plot) \(N_{\min }\) as a function of the rescaled absorption coefficient \(\kappa d_{\text {real}}^d\).
