Reconstruction of scalar potentials in two-field cosmological models
Abstract
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.
- Publication:
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Journal of Cosmology and Astroparticle Physics
- Pub Date:
- February 2008
- DOI:
- 10.1088/1475-7516/2008/02/015
- arXiv:
- arXiv:0711.4300
- Bibcode:
- 2008JCAP...02..015A
- Keywords:
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- General Relativity and Quantum Cosmology;
- Astrophysics;
- High Energy Physics - Theory
- E-Print:
- final version, to appear in JCAP