Cosmology with Ultra-light Pseudo-Nambu-Goldstone Bosons

Abstract

We explore the cosmological implications of an ultra-light pseudo-Nambu-Goldstone boson. With global spontaneous symmetry breaking scale $f\simeq 10^{18}$ GeV and explicit breaking scale comparable to MSW neutrino masses, $M\sim 10^{-3}$ eV, such a field, which acquires a mass $m_{\varphi }\sim M^2/f\sim H_0$, would have become dynamical at recent epochs and currently dominate the energy density of the universe. The field acts as an effective cosmological constant for several expansion times and then relaxes into a condensate of coherent non-relativistic bosons. Such a model can reconcile dynamical estimates of the density parameter, ${\Omega }_m\sim 0.2$, with a spatially flat universe, and can yield an expansion age $H_0{t}_0\simeq 1$ while remaining consistent with limits from gravitational lens statistics.

15 pages (including 2 figs.), uuencoded compressed postscript; also available on www at http://www-astro-theory.fnal.gov/ under Publications

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• Dynamics of Cosmic Flows

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• Holographik, the k-essential approach to interactive models with modified holographic Ricci dark energy
• Tachyon model of Tsallis holographic dark energy
• The observational constraints on the flat $\varphi$CDM models
• Applications to cosmological models of a complex scalar field coupled to a U(1) vector gauge field
• Self-accelerating solutions of scalar-tensor gravity
• Quintessence, inflation and baryogenesis from a single pseudo-Nambu-Goldstone boson
• Probing the dark energy with quasar clustering
• Addressing the High-$f$ Problem in Pseudo-Nambu-Goldstone Boson Dark Energy Models with Dark Matter - Dark Energy Interaction
• Towards a High Energy Theory for the Higgs Phase of Gravity
• Interacting holographic tachyon model of dark energy
• Viable dark energy models using pseudo-Nambu-Goldstone bosons
• Constraining Thawing Dark Energy using Galaxy Cluster Number Counts
• Testing a dissipative kinetic k-essence model
• Measuring axion gradients with photon interferometry (MAGPI)
• Quintessentially Flat Scalar Potentials
• Dark energy from coexistence of phases
• Quintessence models with an oscillating equation of state and their potentials
• Cosmology Solved? Maybe
• Irrational Monodromies of Vacuum Energy
• Non-locality and late-time cosmic acceleration from an ultraviolet complete theory
• Dark Energy and Modified Scale Covariant Theory of Gravitation
• Non perturbative renormalization group potentials and quintessence
• Phantom shell around black hole and global geometry
• Flat Cosmology with Coupled Matter and Dark Energies
• Imprints of dynamical dark energy on weak-lensing measurements
• Reconstructing quintom from WMAP 5-year observations: Generalized ghost condensate
• Freezing Out Early Dark Energy
• SU(2)$_{\tiny\mbox{CMB}}$ at high redshifts and the value of $H_0$
• Neutrino Masses from Outer Space
• Reconstruction of the dark energy scalar field potential by Gaussian process
• Quadratic integrals of a multi-scalar cosmological model
• Constraining Models of Dark Energy
• Scalar field description of a parametric model of dark energy
• Observing axions through photon ring dimming of black holes
• Old Dark Energy
• Cosmological singularity theorems for $f(R)$ gravity theories
• Scalar Dark Energy Models and Scalar-Tensor Gravity: Theoretical Explanations for the Accelerated Expansion of Present Universe
• Radiative neutrino mass generation and dark energy
• A dynamical system analysis of bouncing cosmology with spatial curvature
• Time-reparametrization invariance and Hamilton-Jacobi approach to the cosmological sigma-model
• The Matrix Reloaded - on the Dark Energy Seesaw
• Accurate method for ultralight axion CMB and matter power spectra
• Probing Quintessence Potential with Future Cosmological Surveys
• An SU(2) gauge principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model
• From Swampland to Phenomenology and Back
• Vacuum fluctuations in an ancestor vacuum: A possible dark energy candidate
• Digging into Axion Physics with (Baby)IAXO
• Dynamical Cosmological Constant from A Very Recent Phase Transition
• Complementarity of Future Dark Energy Probes
• Dark Energy with a Fine-toothed Comb
• Cosmological models based on a complex scalar field with a power-law potential associated with a polytropic equation of state
• Cosmological scalar fields and Big-Bang nucleosynthesis
• Cosmological applications in Kaluza-Klein theory
• Bulk/boundary Modular Quintessence and DESI
• Does Positronium Form in the Universe ?
• Cosmic Birefringence from CP-Violating Axion Interactions
• Dark Energy and Inflation with Volume Normalized Action
• Mimicking the LCDM model with Stealths
• Radiative Inflation and Dark Energy RIDEs Again after BICEP2
• Cosmic Evolution with Early and Late Acceleration Inspired by Dual Nature of the Ricci Scalar Curvature
• Accretion of Holographic Dark Energy : Dependency only upon Horizon Radius of Expanding Universe
• Curvature Coupling and Accelerated Expansion of the Universe
• Cosmological Unification, Dark Energy and the Origin of Neutrino Mass
• Hamiltonian Formalism of Topologically Massive Electrodynamics
• Cosmic Equation of State and Advanced LIGO Type Gravity Wave Experiments
• The Quadratic Approximation for Quintessence with Arbitrary Initial Conditions
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Lowering the Horizon on Dark Energy: A Late-Time Response to Early Solutions for the Hubble Tension
• Navigating permanent underdetermination in dark energy and inflationary cosmology
• Cyclic universe due to phantom and quintessence
• Analytical considerations about the cosmological constant and dark energy
• Trans-Planckian censorship constraints on properties and cosmological applications of axion-like fields
• The anomalous shift of the weak boson mass and the quintessence electroweak axion
• Potentials of Coupled Quintessence Based on a Dilaton
• Search for dark energy potentials in quintessence theory
• Top-Hat Spherical Collapse with Clustering Dark Energy. I. Radius Evolution and Critical Contrast Density
• The cosmological dark sector as a scalar $\sigma$-meson field
• The cosmological evolution of ultralight axionlike scalar fields
• Unified Dark Energy and Dark Matter from Dynamical Spacetime Cosmology
• N=2 PNGB Quintessence Dark Energy
• Assessing the viability of successful reconstruction of the dynamics of dark energy using varying fundamental couplings
• Constraining cosmic polarization rotation and implications for primordial B-modes
• Radiative Inflation and Dark Energy
• Observational constraint on Dark Energy from Quantum Uncertainty
• Inflation with blowing-up solution of cosmological constant problem
• Quintessence, Supersymmetry and Inflation
• Experimental demonstration of a fifth force due to chameleon field via cold atoms
• Natures of Statefinder Parameters and Om Diagnostic for Cardassian Universe in Horava-Lifshitz Gravity
• Dark Matter and Fundamental Physics Searches with IACTs
• Phenomenological aspects of dark energy dominated cosmologies
• The string theory swampland in the Euclid, SKA and Vera Rubin observatory era
• Imprints of vector field non-standard couplings on solar neutrino flux
• Unified Model for Inflation and Dark Matter
• Non-perturbative Treatments of the Bosonic String and the Axion with Cosmological Implications
• Thermodynamics of irreversible particle creation phenomena and its cosmological consequence
• Dynamical dark energy in the no-scale Brans-Dicke gravity
• Challenges to the cosmological constant model following results from the Dark Energy Survey
• Spontaneous baryogenesis and generation of gravitational waves in a new model of quintessential $\alpha$-attractor
• Apparent $w<-1$ and a Lower $S_8$ from Dark Axion and Dark Baryons Interactions
• Cosmic Microwave Background as a thermal gas of SU(2) photons: Implications for the high-z cosmological model and the value of $H_0$
• A Jacobian generalization of the pseudo Nambu-Goldstone bosons potential
• Dark energy constraints in light of theoretical priors
• An introduction to axions and their detection
• Constraints on Global Symmetry Breaking in Quantum Gravity from Cosmic Birefringence Measurements
• Effect of Moduli Redefinitions on Fibre Inflation
• Perturbations In Some Dark Energy Models
• Tachyonic Quintessence and a Preferred Direction in the Sky
• The creation of radiation and the relic of inflaton potential
• The Limits of Quintessence
• On Generalized Theories of Varying Fine Structure Constant
• Background-level reconstruction of scalar-field potentials from dark-energy histories and comparison with analytic potential families
• Breaking Free from the Swampland of Impossible Universes through the DESI Portal
• Unstable Axion Quintessence Revisited
• Cosmology of Gravi-Axions
• Sound Mode and Scale-Dependent Growth in Two-Fluid Dynamical Dark Energy
• Electroweak Quintessence Axion as Dark Energy
• Cosmological structure formation in complex scalar field dark matter versus real ultralight axions: a comparative study using CLASS
• Supernova constraints on higher-dimensional cosmology with a phantom field