Figure 2
From: Optimal \({\mathscr{P}}{\mathscr{T}}\) -symmetric switch features exceptional point
The relative total amplification \({{\rm{\Gamma }}/{\rm{\Gamma }}}_{{\rm{opt}}}\) vs. normalized length of the \({\mathscr{P}}{\mathscr{T}}\)-symmetric segment. The inset shows the parabolic behavior near the optimal value \({{\rm{\Gamma }}}_{{\rm{opt}}}\).
