Fig. 3: Spectral diagrams of different cells for the non-Abelian semimetal model.
From: Generalization of non-Hermitian spectral topology to hyperbolic lattices
a, b \({\sigma }_{{{\rm{U}}}}^{(1)}\) and d, e \({\sigma }_{{{\rm{U}}}}^{(2)}\) for a, d \(m=3.7+0.4i\) and b, e \(m=3.9+0.6i\). Olive vertical line in (a) and brown horizontal lines in (b, e) indicate the real-line and imaginary-line gaps, respectively. c, f Gap size \(\Delta\) calculated for c the primitive cell and f the 2-supercell, which is obtained with a resolution \(\Delta {m}_{r}=0.025\) and \(\Delta {m}_{i}=0.01\). In c, f black asterisks emphasize the values of \(m\) in (a, b, d, e), and black dashed lines mark the positions of the phase transition points.
