Reconstructing the dark energy equation of state with varying couplings

Abstract

We revisit the idea of using varying couplings to probe the nature of dark energy, in particular by reconstructing its equation of state. We show that this method can be far superior to the standard methods (using type Ia supernovae or weak lensing). We also show that the simultaneous use of measurements of the fine-structure constant $\alpha$ and the electron-to-proton mass ratio $\mu$ allows a direct probe of grand unification scenarios. We present forecasts for the sensitivity of this method, both for the near future and for the next generation of spectrographs -- for the latter we focus on the planned CODEX instrument for ESO's Extremely Large Telescope (formerly known as OWL). A high-accuracy reconstruction of the equation of state may be possible all the way up to redshift $z\sim 4$.

arXiv comment7 pages, 5 figures. Version accepted for publication in PRD

References in corpus (50)

• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• Cosmology and the Fate of Dilatation Symmetry
• Quintessence and the Rest of the World
• The fundamental constants and their variation: observational status and theoretical motivations
• Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic
• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• Quintessence arising from exponential potentials
• Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra
• Is there Supernova Evidence for Dark Energy Metamorphosis ?
• Reconstructing the Cosmic Equation of State from Supernova distances
• 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 Simple Varying-alpha Cosmology
• A Search for Variations of Fundamental Constants using Atomic Fountain Clocks
• New limit on the present temporal variation of the fine structure constant
• Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample
• Limitations in using luminosity distance to determine the equation of state of the universe
• The Cosmological Evolution of the Nucleon Mass and the Electroweak Coupling Constants
• Implications of Gauge Unification for Time Variation of the Fine Structure Constant
• Dynamical dark energy: Current constraints and forecasts
• Evolution of the Fine Structure Constant Driven by Dark Matter and the Cosmological Constant
• Constraints on the Variations of the Fundamental Couplings
• Nucleosynthesis and the Time Dependence of Fundamental Couplings
• Symmetry Breaking and Time Variation of Gauge Couplings
• Constraints on changes in fundamental constants from a cosmologically distant OH absorber/emitter
• Determining the Equation of State of the Expanding Universe: Inverse Problem in Cosmology
• Looking for a varying $\alpha$ in the Cosmic Microwave Background
• A new constraint on the time dependence of the proton-to-electron mass ratio. Analysis of the Q 0347-383 and Q 0405-443 spectra
• Models of quintessence coupled to the electromagnetic field and the cosmological evolution of alpha
• Time Variation of the Fine Structure Constant Driven by Quintessence
• Feasibility of Reconstructing the Quintessential Potential Using SNIa Data
• Measuring $\alpha$ in the Early Universe: CMB Polarization, Reionization and the Fisher Matrix Analysis
• Quintessence Cosmology and Varying $\alpha$
• Reconstructing the dark energy equation of state with varying alpha
• WMAP Constraints on varying $\alpha$ and the Promise of Reionization
• Mapping the Dark Energy with Varying Alpha
• Quintessence Models and the Cosmological Evolution of alpha
• Time Variations in the Scale of Grand Unification
• Testing theories that predict time variation of fundamental constants
• CMB constraints on the fine structure constant
• Linearized Bekenstein Varying Alpha Models
• String theory, cosmology and varying constants
• Distinguishing among Scalar Field Models of Dark Energy
• Does the Fine Structure Constant Really Vary in Time?
• Cosmological evolution of Alpha driven by a general coupling with Quintessence
• Bekenstein model and the time variation of the strong coupling constant
• Bound on the time variation of the fine structure constant driven by quintessence
• Can we test Dark Energy with Running Fundamental Constants ?
• Time Evolution of the Fine Structure Constant in a Two-Field Quintessence Model
• $\Delta \alpha /\alpha$ from QSO absorption lines driven by an oscillating scalar field

Cited by in corpus (50)

• Search for New Physics with Atoms and Molecules
• Varying constants, Gravitation and Cosmology
• Environmental Dependence of Masses and Coupling Constants
• General Relativity and Cosmology: Unsolved Questions and Future Directions
• Two clock transitions in neutral Yb for the highest sensitivity to variations of the fine-structure constant
• A new measure of Delta alpha/alpha at redshift z = 1.84 from very high resolution spectra of Q1101-264
• UVES radial velocity accuracy from asteroid observations. Implications for the fine structure constant variability
• Observational Constraints on $f(T)$ gravity from varying fundamental constants
• Measuring the stability of fundamental constants with a network of clocks
• An Observational Determination of the Proton to Electron Mass Ratio in the Early Universe
• The Wall of Fundamental Constants
• Phantom-Like Behavior in $f(R)$-Gravity
• 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
• Linear and non-Linear Instabilities in Unified Dark Energy Models
• Variation of fundamental parameters and dark energy. A principal component approach
• Optimal constraint on g_NL from CMB
• Constraining the time variation of the coupling constants from cosmic microwave background: effect of Λ_{QCD}
• Fine-structure constant constraints on dark energy
• 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
• Accurate Extra-Galactic Distances and Dark Energy: Anchoring the Distance Scale with Rotational Parallaxes
• Where are the Walls?
• Constraining cosmologies with fundamental constants I. Quintessence and K-Essence
• Slow-roll Extended Quintessence
• Reappraisal of the limit on the variation in $\alpha$ implied by Oklo
• Fundamental Cosmology from Precision Spectroscopy: I. Varying Couplings
• 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
• Investigation of the fundamental constants stability based on the reactor Oklo burn-up analysis
• Astrophysical constraints on the proton-to-electron mass ratio with FAST
• Phantom-Like Behavior of a DGP-Inspired Scalar-Gauss-Bonnet Gravity
• Possible time-variability of the fine-structure constant expected from the accelerating universe
• Phantom-like effects in asymmetric brane embedding with induced gravity and the Gauss-Bonnet term in the Bulk
• A new substantive proton to electron mass ratio constraint on rolling scalar field cosmologies
• Fundamental Cosmology from Precision Spectroscopy: II. Synergies with supernovae
• The variation of the electromagnetic coupling and quintessence
• Impact of the matter density uncertainty on the dark energy reconstruction
• Cosmological Ohm's law and dynamics of non-minimal electromagnetism
• Beta Function Quintessence Cosmological Parameters and Fundamental Constants I: Power and Inverse Power Law Dark Energy Potentials
• JWST observations constrain the time evolution of fine structure constants and dark energy - electromagnetic coupling
• Interacting dark energy: the role of microscopic feedback in the dark sector
• Estimations of the cosmological parameters from the observational variation of the fine structure constant
• The electromagnetic coupling and the dark side of the Universe
• Assessing the viability of successful reconstruction of the dynamics of dark energy using varying fundamental couplings
• Spacetime variation of $\alpha$ and the CMB power spectra after the recombination
• Cosmological Consequences of Topological Defects: Dark Energy and Varying Fundamental Constants
• New constraints on the values of the fundamental constants at a look-back time of 7.3 Gyr
• On Generalized Theories of Varying Fine Structure Constant