Fig. 10: Contours, phases and eigenvalues of linear stability analysis for vortex solitons.
From: One- and two-dimensional solitons under the action of the inverted cubic-quintic nonlinearity
Contours, phases, and (in)stability eigenvalues λ for stable and unstable vortex solitons with b = −2.8 in (a–c), and b = −3.1 in (d–f), respectively.
