Primordial Helical Magnetic Fields from Inflation?
arXiv:2111.02147 · doi:10.1103/PhysRevD.105.023528
Abstract
We revisit the mechanism of helical magnetogenesis during inflation with a parity violating interaction using the formalism of stochastic inflation. One of the polarization of the gauge field undergoes tachyonic growth leading to the generation of helical magnetic fields. We obtain the Langevin equations associated with the electromagnetic fields which are in the form of Ornstein-Uhlenbeck stochastic differential equations. Consequently, the tachyonic growth of the helical magnetic fields is balanced by a mean-reverting process of stochastic dynamics such that the magnetic fields settle down to an equilibrium state with the amplitude smaller than what is obtained in the absence of the stochastic noises. Working in the parameter space of the model where both the backreaction and the strong coupling problems are under control the model does not provide large enough seed to be amplified by the galactic dynamo as the source of the magnetic fields observed on cosmological scales.
arXiv comment24+15 pages, 6 figures, 5 appendices,new references added, match the published version
References in corpus (79)
- Astrophysical magnetic fields and nonlinear dynamo theory
- Magnetic Fields in the Early Universe
- Evidence for strong extragalactic magnetic fields from Fermi observations of TeV blazars
- Origin of Galactic and Extragalactic Magnetic Fields
- Equilibrium State of a Massless Self-Interacting Scalar Field in the De Sitter Background
- Cosmological Magnetic Fields: Their Generation, Evolution and Observation
- The origin, evolution and signatures of primordial magnetic fields
- The Protogalactic Origin for Cosmic Magnetic Fields
- Inflationary Universe with Anisotropic Hair
- The Magnetized Universe
- EGMF Constraints from Simultaneous GeV-TeV Observations of Blazars
- Strong magnetic fields in normal galaxies at high redshifts
- Gauge Field Production in Axion Inflation: Consequences for Monodromy, non-Gaussianity in the CMB, and Gravitational Waves at Interferometers
- The Evolution of Cosmic Magnetic Fields: From the Very Early Universe, to Recombination, to the Present
- Primordial Magnetic Fields From String Cosmology
- Lower limit on the strength and filling factor of extragalactic magnetic fields
- Generation of Large-Scale Magnetic Fields in Single-Field Inflation
- Magnetic fields from inflation?
- N-flationary magnetic fields
- Phenomenology of a Pseudo-Scalar Inflaton: Naturally Large Nongaussianity
- Correlation Functions in Stochastic Inflation
- Instability of anisotropic cosmological solutions supported by vector fields
- The anisotropic power spectrum and bispectrum in the f(phi) F^2 mechanism
- Intergalactic Magnetic Fields from Quasar Outflows
- Large-scale magnetic fields from inflation in dilaton electromagnetism
- The Nature of Primordial Fluctuations from Anisotropic Inflation
- New limits on extragalactic magnetic fields from rotation measures
- Determination of intergalactic magnetic fields from gamma ray data
- Cosmological Magnetic Fields from Inflation and Backreaction
- Ghost instabilities of cosmological models with vector fields nonminimally coupled to the curvature
- A Global Probe of Cosmic Magnetic Fields to High Redshifts
- Observable non-gaussianity from gauge field production in slow roll inflation, and a challenging connection with magnetogenesis
- Fermi/LAT observations of 1ES 0229+200: implications for extragalactic magnetic fields and background light
- Adding helicity to inflationary magnetogenesis
- Can slow roll inflation induce relevant helical magnetic fields?
- Inflationary Magnetogenesis without the Strong Coupling Problem
- Progress on Cosmological Magnetic Fields
- Stringent Limit on Primordial Magnetic Fields from the Cosmic Microwave Background Radiation
- Relaxing the Bounds on Primordial Magnetic Seed Fields
- POLARBEAR Constraints on Cosmic Birefringence and Primordial Magnetic Fields
- Inflationary Magnetogenesis without the Strong Coupling Problem II: Constraints from CMB anisotropies and B-modes
- Anisotropic Inflation from Charged Scalar Fields
- Universal upper limit on inflation energy scale from cosmic magnetic field
- Gauge-field production during axion inflation in the gradient expansion formalism
- The turbulent chiral-magnetic cascade in the early universe
- Primordial Magnetic Fields from the Post-Inflationary Universe
- Non-perturbative approach for curvature perturbations in stochastic- formalism
- Higher order statistics of curvature perturbations in IFF model and its Planck constraints
- Gamma-ray observations of blazars and the intergalactic magnetic field spectrum
- Early Cosmological Evolution of Primordial Electromagnetic Fields
- Scale-invariant Helical Magnetic Fields from Inflation
- Curvature Perturbations in Anisotropic Inflation with Symmetry Breaking
- Critical constraint on inflationary magnetogenesis
- Inflation from Charged Scalar and Primordial Magnetic Fields?
- An upper limit on the strength of the extragalactic magnetic field from ultra-high-energy cosmic-ray anisotropy
- Does Anisotropic "Inflation" Produce a Small Statistical Anisotropy?
- Vector dark matter production from inflation with symmetry breaking
- Anisotropic Inflation with the non-Vacuum Initial State
- Inflationary magnetogenesis with added helicity: constraints from non-gaussianities
- Improved CMB anisotropy constraints on primordial magnetic fields from the post-recombination ionization history
- Primordial Statistical Anisotropies: The Effective Field Theory Approach
- Gauge field back-reaction in Born Infeld cosmologies
- Current and Future Constraints on Primordial Magnetic Fields
- Fluctuations of inflationary magnetogenesis
- Helical magnetic fields from Riemann coupling
- Effective Theory of Inflationary Magnetogenesis and Constraints on Reheating
- Revisiting Magnetogenesis during Inflation
- Stochastic Effects in Anisotropic Inflation
- Inflationary magneto-(non)genesis, increasing kinetic couplings, and the strong coupling problem
- Probing large-scale magnetism with the Cosmic Microwave Background
- Evolution of primordial magnetic fields in mean-field approximation
- Gradient expansion formalism for magnetogenesis in the kinetic coupling model
- Baryogenesis, magnetogenesis and the strength of anomalous interactions
- Anisotropic Inflation and Cosmological Observations
- Inflationary magnetogenesis in the perturbative regime
- Large-scale gauge spectra and pseudoscalar couplings
- Constraints on the production of primordial magnetic seeds in pre-big bang cosmology
- Effective field theories and inflationary magnetogenesis
- Palatini approach and large-scale magnetogenesis