2 papers
hep-ph2007
Scalar field phase dynamics in preheating
T. Charters, A. Nunes, J. P. Mimoso
We study the model of a massive inflaton field coupled to another scalar filed with interaction term for the first stage of preheating. We obtain the the behavi…
gr-qc2001
Stability analysis of cosmological models through Liapunov's method
Tiago C. Charters, Ana Nunes, Jose P. Mimoso
We investigate the general asymptotic behaviour of Friedman-Robertson-Walker (FRW) models with an inflaton field, scalar-tensor FRW cosmological models and diagonal Bianchi-IX mode…