  We study the dynamics of phantom model and give the conditions for potentials
to admit tracking attractor, de Sitter attractor and big rip attractor.
Especially, we show that phantom models with exponential and inverse power law
potentials do not admit the tracking attractor solution. The "tachyonic"
stability of the system at/near the attractors as well as the quantum stabiltiy
have been studied.

Astrophysics;General Relativity and Quantum Cosmology;High Energy Physics - Theory