Scalar field exact solutions for non-flat FLRW cosmology: A technique from non-linear Schrödinger-type formulation
arXiv:0710.3598 · doi:10.1007/s10714-008-0665-x
Abstract
We report a method of solving for canonical scalar field exact solution in a non-flat FLRW universe with barotropic fluid using non-linear Schrödinger (NLS)-type formulation in comparison to the method in the standard Friedmann framework. We consider phantom and non-phantom scalar field cases with exponential and power-law accelerating expansion. Analysis on effective equation of state to both cases of expansion is also performed. We speculate and comment on some advantage and disadvantage of using the NLS formulation in solving for the exact solution.
12 pages, GERG format, Reference added. accepted by Gen. Relativ. and Grav
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