Parametrization of Tachyon Field
arXiv:gr-qc/0703112 · doi:10.1142/S0217732307021809
Abstract
We assume that universe is dominated by non-relativistic matter and tachyon field and reconstruct the potential of tachyon field directly from the effective equation of state (EOS) of dark energy. We apply the method to four known parametrization of equation of state and discuss the general features of the resulting potentials.
8 pages, 3 figures, accepted by MPLA
References in corpus (25)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- Cosmology and the Fate of Dilatation Symmetry
- An alternative to quintessence
- Exploring the Expansion History of the Universe
- Phantom Energy and Cosmic Doomsday
- Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
- k-Inflation
- Accelerated expansion of the universe driven by tachyonic matter
- Cosmological Evolution of the Rolling Tachyon
- Cosmology with tachyon field as dark energy
- Cardassian Expansion: a Model in which the Universe is Flat, Matter Dominated, and Accelerating
- Can the clustered dark matter and the smooth dark energy arise from the same scalar field ?
- Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
- A theoretician's analysis of the supernova data and the limitations in determining the nature of dark energy
- What is needed of a tachyon if it is to be the dark energy?
- Effective equation of state and energy conditions in phantom/tachyon inflationary cosmology perturbed by quantum effects
- Cosmological dynamics of the tachyon with an inverse power-law potential
- Gravitational Lensing as a Probe of Quintessence
- Probing the dark side: Constraints on the dark energy equation of state from CMB, large scale structure and Type Ia supernovae
- A model independent approach to the dark energy equation of state
- Parametrization of Quintessence and Its Potential
- Probing quintessence: reconstruction and parameter estimation from supernovae
- A Note on Inflation with Tachyon Rolling on the Gauss-Bonnet Brane
- Noncommutative models in patch cosmology
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- Spinor model of a perfect fluid and their applications in Bianchi type-I and FRW models
- Constraints on the generalized tachyon field models from latest observational data
- Interacting holographic tachyon model of dark energy
- Polytropic gas scalar field models of dark energy
- Scalar field in cosmology: Potential for isotropization and inflation
- Kinetic coupled tachyon: A dynamical system analysis
- Covariant holography of a tachyonic accelerating universe