S. Sasa et T. Iwamoto, STABILITY OF PHASE-SINGULAR SOLUTIONS TO THE ONE-DIMENSIONAL COMPLEX GINZBURG-LANDAU EQUATION, Physics letters. A, 175(5), 1993, pp. 289-294
Linear stability of phase-singular solutions to the one-dimensional co
mplex Ginzburg-Landau equation is determined by analysing an ordinary
differential equation with suitable boundary conditions. An equation f
or discrete eigenvalues is derived in the simplest form. Based on our
formulation, it is shown that topologically unstable phase-singular so
lutions are dynamically stable against localized disturbances in some
parameter regions. Combining a phase instability boundary, we complete
a stability diagram for the solutions.