Cosmology with varying fundamental constants from hyperlight, coupled scalars

Abstract

The fundamental constants at recombination can differ from their present-day values due to degeneracies in cosmological parameters, raising the possibility of yet-undiscovered physics coupled directly to the Standard Model. We study the cosmology of theories in which a new, hyperlight scalar field modulates the electron mass and fine-structure constant at early times. We find new degeneracies in cosmologies that pair early recombination with a new contribution to the matter density arising at late times, whose predictions can be simultaneously consistent with CMB and low-redshift distance measurements. Such "late dark matter" already exists in the Standard Model in the form of massive neutrinos but is necessarily realized by the scalar responsible for shifting the early-time fundamental constants. After detailing the physical effects of varying constants and hyperlight scalar fields on cosmology, we show that variations of the electron mass and fine structure constant are constrained at the percent and permille level, respectively, and a hyperlight scalar in the mass range $10^{-32}\mathrm{eV}\lesssim m_{\varphi }\lesssim 10^{-28}\mathrm{eV}$ can impact what variations are allowed while composing up to a percent of the present dark matter density. We comment on the potential for models with a varying electron mass to reconcile determinations of the Hubble constant from cosmological observations and distance-ladder methods, and we show that parameter inference varies significantly between recent baryon acoustic oscillation and type Ia supernova datasets.

arXiv comment51+18 pages, 19 figures; matches published version

References in corpus (172)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• emcee: The MCMC Hammer
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• Baryonic Features in the Matter Transfer Function
• A 2.4% Determination of the Local Value of the Hubble Constant
• Axion Cosmology
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• Cold and Fuzzy Dark Matter
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• The Cosmic Microwave Background Spectrum from the Full COBE/FIRAS Data Set
• The Simons Observatory: Science goals and forecasts
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• The Pantheon+ Analysis: Cosmological Constraints
• On the Geometry of the String Landscape and the Swampland
• The Temperature of the Cosmic Microwave Background
• The fate of hints: updated global analysis of three-flavor neutrino oscillations
• Planck 2018 results. V. CMB power spectra and likelihoods
• Weak Gravitational Lensing of the CMB
• Massive neutrinos and cosmology
• Early Dark Energy Can Resolve The Hubble Tension
• KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing
• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• Small Scale Cosmological Perturbations: An Analytic Approach
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• Relic neutrino decoupling including flavour oscillations
• Cosmological implications of baryon acoustic oscillation (BAO) measurements
• The trouble with $H_0$
• The Hubble Hunter's Guide
• 2020 Global reassessment of the neutrino oscillation picture
• The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters
• Measurements of the Hubble Constant: Tensions in Perspective
• A New Calculation of the Recombination Epoch
• CMB power spectrum parameter degeneracies in the era of precision cosmology
• Planck 2018 results. VII. Isotropy and Statistics of the CMB
• The $H_0$ Olympics: A fair ranking of proposed models
• String theory and gravity
• A search for ultra-light axions using precision cosmological data
• Quintessence as a run-away dilaton
• A CMB Polarization Primer
• Structure Formation with Generalized Dark Matter
• Calibration of the Tip of the Red Giant Branch (TRGB)
• Cosmic Confusion: Degeneracies among Cosmological Parameters Derived from Measurements of Microwave Background Anisotropies
• Runaway dilaton and equivalence principle violations
• Signatures of Relativistic Neutrinos in CMB Anisotropy and Matter Clustering
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• Parameter constraints for flat cosmologies from CMB and 2dFGRS power spectra
• Early Dark Energy Does Not Restore Cosmological Concordance
• Environmental Dependence of Masses and Coupling Constants
• Global constraints on absolute neutrino masses and their ordering
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1
• CMasher: Scientific colormaps for making accessible, informative and 'cmashing' plots
• Data analysis recipes: Using Markov Chain Monte Carlo
• Probing dark energy perturbations: the dark energy equation of state and speed of sound as measured by WMAP
• Cosmological Model Predictions for Weak Lensing: Linear and Nonlinear Regimes
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0
• Towards a precision calculation of $N_{\mathrm{eff}}$ in the Standard Model II: Neutrino decoupling in the presence of flavour oscillations and finite-temperature QED
• Cosmological implications of ultra-light axion-like fields
• How Massless Neutrinos Affect the Cosmic Microwave Background Damping Tail
• Neutrino decoupling including flavour oscillations and primordial nucleosynthesis
• emcee v3: A Python ensemble sampling toolkit for affine-invariant MCMC
• Equivalence Principle Violations and Couplings of a Light Dilaton
• A precision calculation of relic neutrino decoupling
• Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data
• To H0 or not to H0?
• Early dark energy from massive neutrinos -- a natural resolution of the Hubble tension
• Cosmological Constraints from Galaxy Clusters in the 2500 square-degree SPT-SZ Survey
• HyRec: A fast and highly accurate primordial hydrogen and helium recombination code
• Large-angle anomalies in the CMB
• Large Scale Cosmic Microwave Background Anisotropies and Dark Energy
• Constraining Early Dark Energy with Large-Scale Structure
• Elucidating $\Lambda$CDM: Impact of Baryon Acoustic Oscillation Measurements on the Hubble Constant Discrepancy
• $\nu \Lambda$CDM: Neutrinos help reconcile Planck with the Local Universe
• Cosmic Microwave Weak lensing data as a test for the dark universe
• CMB power spectra and cosmological parameters from Planck PR4 with CamSpec
• Relieving the Hubble tension with primordial magnetic fields
• On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference
• Consistency tests of $\Lambda$CDM from the early integrated Sachs-Wolfe effect: Implications for early-time new physics and the Hubble tension
• Cosmological parameters derived from the final (PR4) Planck data release
• The BAO+BBN take on the Hubble tension
• Macroscopic Forces from Supersymmetry
• Baryon Acoustic Oscillations and the Hubble Constant: Past, Present and Future
• Dark Matter from an ultra-light pseudo-Goldsone-boson
• Cosmology from Cosmic Shear with DES Science Verification Data
• Ultra-Light Scalar Fields and the Growth of Structure in the Universe
• Planck intermediate results. LI. Features in the cosmic microwave background temperature power spectrum and shifts in cosmological parameters
• Evolution of the Fine Structure Constant Driven by Dark Matter and the Cosmological Constant
• Analytic approach to the polarization of the cosmic microwave background in flat and open universes
• Efficient Cosmological Parameter Estimation from Microwave Background Anisotropies
• Phases of New Physics in the CMB
• Using the Full Power of the Cosmic Microwave Background to Probe Axion Dark Matter
• The Damping Tail of CMB Anisotropies
• Rock 'n' Roll Solutions to the Hubble Tension
• The effect of peculiar velocities on supernova cosmology
• Updated fundamental constant constraints from Planck 2018 data and possible relations to the Hubble tension
• Early-universe constraints on a time-varying fine structure constant
• Constraining Variations in the Fine-Structure Constant with the Cosmic Microwave Background
• Axion as a Cold Dark Matter candidate
• Ultrafast effective multi-level atom method for primordial hydrogen recombination
• The Pantheon+ Analysis: Improving the Redshifts and Peculiar Velocities of Type Ia Supernovae Used in Cosmological Analyses
• Neutrinos help reconcile Planck measurements with both Early and Local Universe
• Early recombination as a solution to the $H_0$ tension
• Looking for a varying $\alpha$ in the Cosmic Microwave Background
• Possible Constraints on the Time Variation of the Fine Structure Constant from Cosmic Microwave Background Data
• Cosmic concordance and the fine structure constant
• Addendum to: Global constraints on absolute neutrino masses and their ordering
• Dark energy with non-adiabatic sound speed: initial conditions and detectability
• Phenomenology of the Equivalence Principle with Light Scalars
• New constraints on time-dependent variations of fundamental constants using Planck data
• Large-scale alignments from WMAP and Planck
• Future CMB tests of dark matter: ultra-light axions and massive neutrinos
• Towards accurate cosmological predictions for rapidly oscillating scalar fields as dark matter
• Measuring $\alpha$ in the Early Universe: CMB Polarization, Reionization and the Fisher Matrix Analysis
• WMAP Constraints on varying $\alpha$ and the Promise of Reionization
• Ultra-light axions and the $S_8$ tension: joint constraints from the cosmic microwave background and galaxy clustering
• H0 tension or T0 tension?
• Couplings of a Light Dilaton and Violations of the Equivalence Principle
• Symmetry of Cosmological Observables, and a High Hubble Constant as an Indicator of a Mirror World Dark Sector
• Can redshift errors bias measurements of the Hubble Constant?
• Robustness of baryon acoustic oscillation constraints for early-Universe modifications to $\Lambda$CDM
• Cosmological Perturbations at Second Order and Recombination Perturbed
• Neutrino-Assisted Early Dark Energy: Theory and Cosmology
• Large-Angle Correlations in the Cosmic Microwave Background
• Intensity Mapping as a Probe of Axion Dark Matter
• HYREC-2: a highly accurate sub-millisecond recombination code
• Crinkles in the last scattering surface: Non-Gaussianity from inhomogeneous recombination
• Relic Neutrino Freeze-out: Dependence on Natural Constants
• New Constraints on variations of the fine structure constant from CMB anisotropies
• Constraining non standard recombination: A worked example
• Axi-Higgs Cosmology
• Lensing-like tensions in the Planck legacy release
• Early Universe Constraints on Time Variation of Fundamental Constants
• The Fine Structure Constant and the CMB Damping Scale
• Small-scale clumping at recombination and the Hubble tension
• Can small-scale baryon inhomogeneities resolve the Hubble tension? An investigation with ACT DR4
• CMB constraints on the fine structure constant
• A Dark Matter Trigger for Early Dark Energy Coincidence
• Cosmic Microwave Background Acoustic Peak Locations
• Constraining the time variation of the coupling constants from cosmic microwave background: effect of Λ_{QCD}
• Constraints on the time variation of the fine structure constant by the 5-year WMAP data
• How sound are our ultra-light axion approximations?
• Constraints on variation in $\alpha$ and $m_e$ from WMAP 7-year data
• Planck ISW-lensing likelihood and the CMB temperature
• Scaling Transformations and the Origins of Light Relics Constraints from Cosmic Microwave Background Observations
• Constraints on time variation of fine structure constant from WMAP-3yr data
• Accurate effective fluid approximation for ultralight axions
• WMAP 5-year constraints on time variation of $\alpha$ and $m_e$ in a detailed recombination scenario
• Improved Mixed Dark Matter Halo Model for Ultralight Axions
• Accuracy of cosmological parameters using the baryon acoustic scale
• The Effect of Time Variation in the Higgs Vacuum Expectation Value on the Cosmic Microwave Background
• Quintessential Cosmological Tensions
• Insights into neutrino decoupling gleaned from considerations of the role of electron mass
• Electron mass variation from dark sector interactions and compatibility with cosmological observations
• Analytical expressions and numerical evaluation of the luminosity distance in a flat cosmology
• Thomson scattering: One rate to rule them all
• Environment Dependent Electron Mass and the H${}_0$-Tension
• On dataset tensions and signatures of new cosmological physics
• Efficient Estimation of Highly Structured Posteriors of Gravitational-Wave Signals with Markov-Chain Monte Carlo
• The ISW effect and the lack of large-angle CMB temperature correlations
• Measuring the Duration of Last Scattering
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: constraints on the time variation of fundamental constants from the large-scale two-point correlation function
• Runaway dilaton models: improved constraints from the full cosmological evolution
• The role of $T_0$ in CMB anisotropy measurements
• Axi-Higgs cosmology: Cosmic Microwave Background and cosmological tensions

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