Reconstruction of scalar potentials in two-field cosmological models

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We study the procedure of the reconstruction of phantom-scalar field potentials in two-field cosmological models. It is shown that while in the one-field case the chosen cosmological evolution defines uniquely the form of the scalar potential, in the two-field case one has an infinite number of possibilities. The classification of a large class of possible potentials is presented and the dependence of cosmological dynamics on the choice of initial conditions is investigated qualitatively and numerically for two particular models.
final version, to appear in JCAP

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

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http://salesiana.dossiersoluciones.com/handle/123456789/199749

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0711.4300
 http://arxiv.org/abs/0711.4300
 JCAP0802:015,2008
 doi:10.1088/1475-7516/2008/02/015

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arXiv