Figure 3
Dimer amplitudes \(|\phi _{1}(z)|^2\) (continuous line) and \(|\phi _{2}(z)|^2\) (dashed line) for the linear \({\mathcal{{PT}}}\) case (\(\gamma =0, \sigma \ne 0\)) for several fractional derivative orders and various gain/loss parameters. (a) \(\alpha =1, \sigma =0\), (b) \(\alpha =0.9, \sigma =0\), (c) \(\alpha =0.5, \sigma =0\), (d) \(\alpha =0.25, \sigma =0\), (e) \(\alpha =1, \sigma =0.5\), (f) \(\alpha =0.9, \sigma =0.5\), (g) \(\alpha =0.8, \sigma =0.5\), (h) \(\alpha =0.25, \sigma =1.1\), (i) \(\alpha =0.8, \sigma =1.1\).
