Observational Constraints on Varying Alpha in $\Lambda (\alpha )$CDM Cosmology

Abstract

In this work, we consider the so-called $\Lambda (\alpha )$CDM cosmology with $\Lambda \propto {\alpha }^{-6}$ while the fine-structure "constant" $\alpha$ is varying. In this scenario, the accelerated expansion of the universe is driven by the cosmological "constant" $\Lambda$ (equivalently the vacuum energy), and the varying $\alpha$ is driven by a subdominant scalar field $\varphi$ coupling with the electromagnetic field. The observational constraints on the varying $\alpha$ and $\Lambda \propto {\alpha }^{-6}$ models with various couplings $B_F(\varphi )$ between the subdominant scalar field $\varphi$ and the electromagnetic field are considered.

arXiv comment13 pages, 5 figures, 1 table, revtex4; v2: appendix removed, Commun. Theor. Phys. in press; v3: published version. arXiv admin note: text overlap with arXiv:1605.04571

References in corpus (60)

• 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
• Planck 2015 results. XIII. Cosmological parameters
• Dynamics of dark energy
• The Cosmological Constant and Dark Energy
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• Cosmological parameters from SDSS and WMAP
• Cosmological Constant - the Weight of the Vacuum
• The Cosmological Constant
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Dark Energy and the Accelerating Universe
• The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
• Information criteria for astrophysical model selection
• Cosmology and fundamental physics with the Euclid satellite
• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• Dark Energy
• A Search for Time Variation of the Fine Structure Constant
• Varying constants, Gravitation and Cosmology
• A time varying speed of light as a solution to cosmological puzzles
• Planck 2015 results. XIV. Dark energy and modified gravity
• Comparison of the Legacy and Gold SnIa Dataset Constraints on Dark Energy Models
• Superluminary Universe: A Possible Solution to the Initial Value Problem in Cosmology
• Possible evidence for a variable fine structure constant from QSO absorption lines: motivations, analysis and results
• A Simple Varying-alpha Cosmology
• Cosmologies with Varying Light-Speed
• Robust Dark Energy Constraints from Supernovae, Galaxy Clustering, and Three-Year Wilkinson Microwave Anisotropy Probe Observations
• Spatial variation in the fine-structure constant -- new results from VLT/UVES
• Constraints on linear-negative potentials in quintessence and phantom models from recent supernova data
• Varying Alpha in a More Realistic Universe
• Future supernovae data and quintessence models
• Categorizing Different Approaches to the Cosmological Constant Problem
• Evolution of the Fine Structure Constant Driven by Dark Matter and the Cosmological Constant
• Observational Constraints on Cosmological Models with the Updated Long Gamma-Ray Bursts
• Local and Global Variations of The Fine Structure Constant
• Bouncing Universes with Varying Constants
• Cosmological acceleration, varying couplings, and Lorentz breaking
• Observational $H(z)$ Data and Cosmological Models
• $f(T)$ Theories and Varying Fine Structure Constant
• Distance Priors from Planck and Dark Energy Constraints from Current Data
• Models of quintessence coupled to the electromagnetic field and the cosmological evolution of alpha
• Cosmological Applications of Pade Approximant
• Cosmological Models and Gamma-Ray Bursts Calibrated by Using Pade Method
• Physics of dark energy particles
• Cosmological Constraints on the Modified Entropic Force Model
• Does the cosmological constant imply the existence of a minimum mass?
• Statistical methods for cosmological parameter selection and estimation
• Cosmological evolution of Alpha driven by a general coupling with Quintessence
• Varying-Alpha Cosmologies with Potentials
• Fundamental cosmology in the E-ELT era: The status and future role of tests of fundamental coupling stability
• Axiomatic approach to the cosmological constant
• Varying Alpha
• Cosmological Constant, Fine Structure Constant and Beyond
• On the cosmological evolution of alpha and mu and the dynamics of dark energy
• Fine-structure constant constraints on dark energy: II. Extending the parameter space
• The minimum mass of a charged spherically symmetric object in $D$ dimensions, its implications for fundamental particles, and holography
• Varying Alpha Driven by the Dirac-Born-Infeld Scalar Field
• $f(T)$ non-linear massive gravity and the cosmic acceleration
• Current and future constraints on Bekenstein-type models for varying couplings

Cited by in corpus (8)

• Null Signal for the Cosmic Anisotropy in the Pantheon Supernovae Data
• Model-Independent Constraints on Lorentz Invariance Violation via the Cosmographic Approach
• Testing the Cosmic Anisotropy with Supernovae Data: Hemisphere Comparison and Dipole Fitting
• Cosmic Anisotropy and Fast Radio Bursts
• Is there a connection between "dark" and "light" physics?
• Does space-time torsion determine the minimum mass of gravitating particles?
• Cosmological twinlike models with multi scalar fields
• Alleviating the Hubble Tension with a Local Void and Transitions of the Absolute Magnitude