Reconstructing the dark energy equation of state with varying alpha

Abstract

The possibility of reconstructing the dark energy equation of state from variations in the fine structure constant is investigated for a class of models where the quintessence field is non-minimally coupled to the electromagnetic field. For given classes of couplings and quintessence interaction potentials, it is typically found that variations in alpha would need to be measured to within an accuracy of at least $5\times 10^{-7}$ to obtain a reconstructed equation of state with less than a twenty per cent deviation from the true equation of state between redshifts 0 and 3. In this case, it is argued that the sign of the first derivative of the equation of state can be uncovered from the reconstruction, thus providing unique information on how the universe developed into its present dark energy dominated phase independent of high redshift surveys. Such information would complement future observations anticipated from the Supernova Acceleration Probe.

6 pages, 4 figures. Extended discussion and bibliography. In Press, Physical Review D

References in corpus (16)

• Cosmological Constant - the Weight of the Vacuum
• Cosmology and the Fate of Dilatation Symmetry
• Chameleon Cosmology
• Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic
• Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra
• The State of the Dark Energy Equation of State
• Limits on the time variation of the electromagnetic fine-structure constant in the low energy limit from absorption lines in the spectra of distant quasars
• A theoretician's analysis of the supernova data and the limitations in determining the nature of dark energy
• Spacetime-varying couplings and Lorentz violation
• Varying Alpha in a More Realistic Universe
• Cosmological acceleration, varying couplings, and Lorentz breaking
• Models of quintessence coupled to the electromagnetic field and the cosmological evolution of alpha
• A Re-examination of the ${}^{187}$Re Bound on the Variation of Fundamental Couplings
• Time Variation of the Fine Structure Constant Driven by Quintessence
• Crossover quintessence and cosmological history of fundamental "constants"
• 2d Stringy Black Holes and Varying Constants

Cited by in corpus (65)

• Dynamics of dark energy
• Reconstructing Dark Energy
• Is there Supernova Evidence for Dark Energy Metamorphosis ?
• Environmental Dependence of Masses and Coupling Constants
• Modified gravity with R-matter couplings and (non-)geodesic motion
• The status of varying constants: a review of the physics, searches and implications
• Is there Correlation between Fine Structure and Dark Energy Cosmic Dipoles?
• Reconstructing the dark energy equation of state with varying couplings
• Gravitational collapse of homogeneous scalar fields
• The Wall of Fundamental Constants
• Constraints on Dirac-Born-Infeld type dark energy models from varying alpha
• Constraining Variations in the Fine Structure Constant in the presence of Early Dark Energy
• Dark Energy coupling with electromagnetism as seen from future low-medium redshift probes
• Variation of fundamental parameters and dark energy. A principal component approach
• Linearized Bekenstein Varying Alpha Models
• Cosmological evolution of Alpha driven by a general coupling with Quintessence
• Constraints on the dark energy equation of state from the separation of CMB peaks and the evolution of alpha
• Euclid: constraining dark energy coupled to electromagnetism using astrophysical and laboratory data
• Fundamental cosmology in the E-ELT era: The status and future role of tests of fundamental coupling stability
• Consistency tests of the stability of fundamental couplings and unification scenarios
• The variation of the fine-structure constant from disformal couplings
• Unifying cosmological and recent time variations of fundamental couplings
• Probing unification scenarios with atomic clocks
• Probing dark energy beyond $z=2$ with CODEX
• On the cosmological evolution of alpha and mu and the dynamics of dark energy
• Quintessence and tachyon dark energy models with a constant equation of state parameter
• Fine-structure constant constraints on dark energy: II. Extending the parameter space
• Most general cubic-order Horndeski Lagrangian allowing for scaling solutions and the application to dark energy
• Where are the Walls?
• A simple parametrisation for coupled dark energy
• Competing bounds on the present-day time variation of fundamental constants
• Dark energy and Equivalence Principle constraints from astrophysical tests of the stability of the fine-structure constant
• Constraining cosmologies with fundamental constants I. Quintessence and K-Essence
• Consistency of local and astrophysical tests of the stability of fundamental constants
• Beta Function Quintessence Cosmological Parameters and Fundamental Constants II: Exponential and Logarithmic Dark Energy Potentials
• Fundamental Cosmology from Precision Spectroscopy: I. Varying Couplings
• Evolution of the fine-structure constant in the non-linear regime
• Cosmic Variation of Proton to Electron Mass Ratio with an interacting Higgs Scalar Field
• Time Variation of Fine Structure Constant and Proton-Electron Mass Ratio with Quintessence
• A stellar test of the physics of unification
• Variations of the fine-structure constant $\alpha$ in exotic singularity models
• Fundamental Physics with ESPRESSO, Constraining a simple parametrisation for varying $\alpha$
• Varying Alpha Monopoles
• Cosmic strings in Bekenstein-type models
• Constraints on thawing scalar field models from fundamental constants
• Possible time-variability of the fine-structure constant expected from the accelerating universe
• A new substantive proton to electron mass ratio constraint on rolling scalar field cosmologies
• Fundamental Cosmology from Precision Spectroscopy: II. Synergies with supernovae
• Coupling quintessence kinetics to electromagnetism
• Beta Function Quintessence Cosmological Parameters and Fundamental Constants I: Power and Inverse Power Law Dark Energy Potentials
• Distinguishing freezing and thawing dark energy models through measurements of the fine-structure constant
• Impact of the matter density uncertainty on the dark energy reconstruction
• Constraints on Field Theoretical Models for Variation of the Fine Structure Constant
• JWST observations constrain the time evolution of fine structure constants and dark energy - electromagnetic coupling
• Relaxing cosmological constraints on current neutrino masses
• Fine-structure constant constraints on late-time dark energy transitions
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Estimations of the cosmological parameters from the observational variation of the fine structure constant
• Assessing the viability of successful reconstruction of the dynamics of dark energy using varying fundamental couplings
• Gravitational Effects of Varying Alpha Strings
• Varying Alpha Generalized Dirac-Born-Infeld Models
• Cosmological Consequences of Topological Defects: Dark Energy and Varying Fundamental Constants
• Scaling solutions in three-form cosmology
• Avoiding unrealistic priors: the case of dark energy constraints from the time variation of the fine-structure constant
• On Generalized Theories of Varying Fine Structure Constant