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Defect-freezing and Defect-unbinding in the Vector Complex Ginzburg-Landau Equation.

Hoyuelos, M.; Hernandez-Garcia, E.; Colet, P.; San Miguel, M.
Computer Physics Communications 121-122, 414-419 (1999)

We describe the dynamical behavior found in numerical solutions of
the Vector Complex Ginzburg-Landau equation in parameter values
where plane waves are stable. Topological defects in the system
are responsible for a rich behavior. At low coupling between the
vector components, a {sl frozen} phase is found, whereas a {sl
gas-like} phase appears at higher coupling. The transition is a
consequence of a defect unbinding phenomena. Entropy functions
display a characteristic behavior around the transition.