Reconstruction of scalar potentials in two-field cosmological models

Details Reconstruction of scalar potentials in two-field cosmological models Reconstruction of scalar potentials in two-field cosmological models

2007-11-27

arxiv.org/abs/0711.4300v2

JCAP0802:015,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

final version, to appear in JCAP

Scientific paper

10.1088/1475-7516/2008/02/015

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.

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