Fig. 7: Eigenvalues as functions of the average composition.
From: Effervescence in a binary mixture with nonlinear non-reciprocal interactions
a The real and imaginary parts of the eigenvalue λ± determining the stability of the homogeneous state with composition ϕ0. λ± is plotted as a function of ∣ϕ0∣ only (due to global phase invariance of the dynamics) for fixed values of α0 and α1. The emergence of an exceptional point is highlighted by the red circles. The Hopf bifurcation points are encircled in blue. b, c, Same as in panel a, but for different values of α0,1.
