New agegraphic dark energy as a rolling tachyon
arXiv:0902.0716 · doi:10.1088/1674-1056/19/1/019802
Abstract
Combining the general relativity and the uncertainty relation in quantum mechanics, the energy density of quantum fluctuations of space-time can be viewed as dark energy. The so-called agegraphic dark energy model is just based on this viewpoint, in which the age of the universe is introduced as the length measure. Recently, the new agegraphic dark energy model was proposed, where the dynamical dark energy is measured by the conformal age of the universe. On the other hand, scalar-field dark energy models like tachyon are often regarded as an effective description of some underlying theory of dark energy. In this paper, we show that the new agegraphic dark energy can be described completely by a tachyon scalar-field. We thus reconstruct the potential and the dynamics of the tachyon scalar-field, according to the evolution of the new agegraphic dark energy.
arXiv comment11 pages, 4 figures
References in corpus (78)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- Dynamics of dark energy
- Cosmological parameters from SDSS and WMAP
- de Sitter Vacua in String Theory
- A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
- Cosmological Constant - the Weight of the Vacuum
- The Case for a Positive Cosmological Lambda-term
- Cosmology and the Fate of Dilatation Symmetry
- Quintessence, Cosmic Coincidence, and the Cosmological Constant
- An alternative to quintessence
- Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
- A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
- A Model of Holographic Dark Energy
- Essentials of k-essence
- Coupled Quintessence
- Cosmological Tracking Solutions
- Dark Energy Constraints from the Cosmic Age and Supernova
- Tachyon Matter
- Accelerated Universe from Gravity Leaking to Extra Dimensions
- Accelerated expansion of the universe driven by tachyonic matter
- Cosmology with Ultra-light Pseudo-Nambu-Goldstone Bosons
- Cosmological Evolution of a Quintom Model of Dark Energy
- Braneworld models of dark energy
- CDM Models with a Smooth Component
- A classification of scalar field potentials with cosmological scaling solutions
- Cosmological Evolution of the Rolling Tachyon
- A Dark Energy Model Characterized by the Age of the Universe
- Cosmology with tachyon field as dark energy
- A New Model of Agegraphic Dark Energy
- Constraints on holographic dark energy from type Ia supernova observations
- Dilatonic ghost condensate as dark energy
- Power-Law Inflation from the Rolling Tachyon
- Statefinder diagnostic for holographic dark energy model
- Assisted inflation via tachyon condensation
- Holographic Chaplygin gas model
- Supernova Constraints on a holographic dark energy model
- What is needed of a tachyon if it is to be the dark energy?
- Nuclear Reaction Network for Primordial Nucleosynthesis: a detailed analysis of rates, uncertainties and light nuclei yields
- Statefinder diagnostic for coupled quintessence
- Constraints on Holographic Dark Energy from Latest Supernovae, Galaxy Clustering, and Cosmic Microwave Background Anisotropy Observations
- Dark Energy and Dark Matter
- Dynamical vacuum energy, holographic quintom, and the reconstruction of scalar-field dark energy
- Cosmological dynamics of the tachyon with an inverse power-law potential
- Holographic Ricci dark energy: Current observational constraints, quintom feature, and the reconstruction of scalar-field dark energy
- Reconstructing holographic quintessence
- New generalized Chaplygin gas as a scheme for unification of dark energy and dark matter
- Cosmological Constraints on New Agegraphic Dark Energy
- Constraints on holographic dark energy from X-ray gas mass fraction of galaxy clusters
- Assisted Tachyonic Inflation
- Constraints on the Dark Energy from the holographic connection to the small l CMB Suppression
- Categorizing Different Approaches to the Cosmological Constant Problem
- Tracking solutions in tachyon cosmology
- Coupled Quintessence in a Power-Law Case and the Cosmic Coincidence Problem
- Statefinder diagnosis for the interacting model of holographic dark energy
- Dark Energy: the Cosmological Challenge of the Millennium
- Statefinder diagnosis in a non-flat universe and the holographic model of dark energy
- Agegraphic dark energy as a quintessence
- Holographic tachyon model
- Quintessence reconstruction of the new agegraphic dark energy model
- Cosmological implications of Karolyhazy uncertainty relation
- Space-time in light of Karolyhazy uncertainty relation
- Constraints on holographic dark energy models using the differential ages of passively evolving galaxies
- Features of holographic dark energy under the combined cosmological constraints
- The Beginning and Evolution of the Universe
- Holographic dark energy in a cyclic universe
- Current constraints on interacting holographic dark energy
- Reconstructing Quintom from Ricci Dark Energy
- Possible theoretical limits on holographic quintessence from weak gravity conjecture
- Cosmological Scaling Solutions of Multiple Tachyon Fields with Inverse Square Potentials
- Reconstructing f(R) theory according to holographic dark energy
- Resource Letter: Dark Energy and the Accelerating Universe
- Remarks on Dynamical Dark Energy Measured by the Conformal Age of the Universe
- Accelerating Universe and Cosmological Perturbation in the Ghost Condensate
- Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets
- Cosmological Models and Latest Observational Data
- Ultra High Energy Neutrinos in the Mediterranean: detecting nu_tau and nu_mu with a km^3 Telescope
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- Comparison of dark energy models: A perspective from the latest observational data
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- New agegraphic dark energy in Horava-Lifshitz cosmology
- Interacting new agegraphic tachyon, K-essence and dilaton scalar field models of dark energy in non-flat universe
- Interacting entropy-corrected agegraphic-tachyon dark energy
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- Sandage-Loeb test for the new agegraphic and Ricci dark energy models
- Prospect for constraining holographic dark energy with gravitational wave standard sirens from the Einstein Telescope
- New Agegraphic Dark Energy in Brans-Dicke Theory
- A more general interacting model of holographic dark energy
- A New Type of Dark Energy Model
- Note on agegraphic dark energy inspired by modified Barrow entropy
- Theoretical Limits on Agegraphic Quintessence from Weak Gravity Conjecture
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- New Tsallis Agegraphic Dark Energy
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