Figure 2
From: Wave instabilities in the presence of non vanishing background in nonlinear Schrödinger systems
Collapse ruled by the defocusing-focusing CQNLS: (a) color level plot of ρ = |ψ|2 in time-space (t, x); (b) snapshots of ρ(x) at t = 0 (dashed line) and t = 0.049 (solid line); (c) peak intensity (or density) evolution along t. Here the quintic coefficient is α = 0.1, the background ρ0 = 1 and we employ a positive-mass perturbation δ = 0.1.
