First-order formalism and dark energy
Dec, 2005Citations per year
Abstract: (arXiv)
This work deals with cosmological models driven by real scalar field, described by standard dynamics in generic spherical, flat, and hyperbolic geometries. We introduce a first-order formalism, which shows how to relate the potential that specifies the scalar field model to Hubble's parameter in a simple and direct manner. Extensions to tachyonic dynamics, and to two or more real scalar fields are also presented.- 98.80.Cq
- dark energy
- field theory: scalar
- space-time: Robertson-Walker
- tachyon
- Hubble constant
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