Figure 3
(a) Enlarged view of energy spectra in Fig. 2(a). The solid black lines denote the energy spectra obtained from the G-function. The blue dash (red dot) lines denote poles associated with A (B) operator. The triangle denotes the first intersecting point of the energy levels and the 1-st pole line associated with the B operator. The circle (square) denotes the intersecting point of the energy level and the 0-th (1-st) pole line associated with the A operator. (b) The B-type exceptional eigenvalue for m = 1. The A-type exceptional eigenvalues for (c) m = 0 and (d) m = 1. Δ = 0.5, g1 = 0.1.
