Possible time-variability of the fine-structure constant expected from the accelerating universe

Abstract

We present a theoretical calculation on the time-variability of the fine-structure constant to fit the result of the recent precise analysis of the measurement of the QSO absorption lines. We find the parameters and initial values of the scalar-tensor theory to be determined much more accurately than fitting the accelerating universe itself, but leading not to easy detections of the effect on the equation of state of the dark energy in the earlier epochs.

9 pages, 9 figures. Revised interpretation of the theoretical fit; more recent references

References in corpus (25)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Cosmological Imprint of an Energy Component with General Equation of State
• Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
• Cosmic Concordance and Quintessence
• The Oklo bound on the time variation of the fine-structure constant revisited
• 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
• Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample
• The nuclear interaction at Oklo 2 billion years ago
• Time Variation of the Fine Structure Constant Driven by Quintessence
• Reconstructing the dark energy equation of state with varying alpha
• Time-variability of alpha from realistic models of Oklo reactors
• Most precise single redshift bound to Delta alpha/alpha
• A new measure of Delta alpha/alpha at redshift z = 1.84 from very high resolution spectra of Q1101-264
• Mapping the Dark Energy with Varying Alpha
• Reconstructing the dark energy equation of state with varying couplings
• On Oscillating Dark Energy
• Transition frequency shifts with fine structure constant variation for Fe II: Breit and core-valence correlation correction
• Time Evolution of the Fine Structure Constant in a Two-Field Quintessence Model
• Cosmological Variation of the Fine Structure Constant from an Ultra-Light Scalar Field: The Effects of Mass
• Time-variability of the fine-structure constant expected from the Oklo constraint and the QSO absorption lines
• $\Delta \alpha /\alpha$ from QSO absorption lines driven by an oscillating scalar field
• A possible new interpretation of the results of $\Delta \alpha /\alpha$ from QSO absorption lines
• Gravitational scalar field coupled directly to the Maxwell field and its effect to solar-system experiments

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• UVES radial velocity accuracy from asteroid observations. Implications for the fine structure constant variability
• Optimal constraint on g_NL from CMB
• Constraining the time variation of the coupling constants from cosmic microwave background: effect of Λ_{QCD}
• Unifying cosmological and recent time variations of fundamental couplings
• On the cosmological evolution of alpha and mu and the dynamics of dark energy
• Revised fits to $\Delta \alpha /\alpha$ in consistency with the accelerating universe