First-order formalism and dark energy
classification
🌌 astro-ph
hep-phhep-th
keywords
scalardynamicsfieldfirst-orderformalismrealcosmologicaldark
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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.
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