Large-scale magnetic fields from dilaton inflation in noncommutative spacetime

Abstract

The generation of large-scale magnetic fields is studied in dilaton electromagnetism in noncommutative inflationary cosmology taking into account the effects of the spacetime uncertainty principle motivated by string theory. We show that it is possible to generate large-scale magnetic fields with sufficient strength to account for the observed fields in galaxies and clusters of galaxies through only adiabatic compression without dynamo amplification mechanism in models of power-law inflation based on spacetime noncommutativity without introducing a huge hierarchy between the dilaton's potential and its coupling to the electromagnetic fields.

16 pages, no figure

Cited by in corpus (73)

• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Primordial magnetogenesis
• Generation of Large-Scale Magnetic Fields in Single-Field Inflation
• Inflation and late-time cosmic acceleration in non-minimal Maxwell-$F(R)$ gravity and the generation of large-scale magnetic fields
• Large-scale magnetic fields in the inflationary universe
• Vector Curvaton with varying Kinetic Function
• Effects of a Primordial Magnetic Field on Low and High Multipoles of the CMB
• A Model of Universe Anisotropization
• Non-Gaussianity from Cosmic Magnetic Fields
• New Constraints on the Primordial Magnetic Field
• The Search for a Primordial Magnetic Field
• Helical Magnetic Fields from Inflation
• Higher order statistics of curvature perturbations in IFF model and its Planck constraints
• Fermionic Schwinger effect and induced current in de Sitter space
• Inflation-Produced Magnetic Fields in Nonlinear Electrodynamics
• Particle Production of Vector Fields: Scale Invariance is Attractive
• Inflation-Produced Magnetic Fields in R^n F^2 and I F^2 models
• Constraints on the Evolution of the Primordial Magnetic Field from the Small-Scale Cosmic Microwave Background Angular Anisotropy
• Baryon asymmetry from hypermagnetic helicity in dilaton hypercharge electromagnetism
• Generic estimates for magnetic fields generated during inflation including Dirac-Born-Infeld theories
• Cosmological magnetic fields from nonlinear effects
• Parity Violating Statistical Anisotropy
• Inflation from Charged Scalar and Primordial Magnetic Fields?
• Large-scale magnetic fields from inflation due to Chern-Simons-like effective interaction
• Hypermagnetic Baryogenesis
• Supergravity inspired Vector Curvaton
• Metric perturbation from inflationary magnetic field and generic bound on inflation models
• Probing Noncommutativity with Inflationary Gravitational Waves
• Inflationary magnetogenesis with reheating phase from higher curvature coupling
• Point splitting renormalization of Schwinger induced current in de Sitter spacetime
• The interrelation between the generation of large-scale electric fields and that of large-scale magnetic fields during inflation
• Primordial magnetic fields from second-order cosmological perturbations: Tight coupling approximation
• Effect of Primordial Magnetic Field on Seeds for Large Scale Structure
• Statistical Anisotropy and the Vector Curvaton Paradigm
• Cosmological magnetic field survival
• Property of the spectrum of large-scale magnetic fields from inflation
• Domain wall solution in $F(R)$ gravity and variation of the fine structure constant
• Magneto-reheating constraints from curvature perturbations
• Constraints on the Primordial Magnetic Field from ${\sigma }_8$
• Generation of large-scale magnetic fields, non-Gaussianity, and primordial gravitational waves in inflationary cosmology
• Maxwell-Kostelecký Electromagnetism and Cosmic Magnetization
• Effective Theory of Inflationary Magnetogenesis and Constraints on Reheating
• Primordial Magnetic Field Effects on the CMB and Large Scale Structure
• Evolution of primordial magnetic fields in mean-field approximation
• Varying Electromagnetic Coupling and Primordial Magnetic Fields
• Constraints on the neutrino mass and the primordial magnetic field from the matter density fluctuation parameter ${\sigma }_8$
• Generation of large-scale magnetic fields from inflation in teleparallelism
• Lorentz Symmetry Violation and Galactic Magnetism
• DBI with Primordial Magnetic Field in the Sky
• Constraining Primordial Magnetic Fields by CMB Photon-Graviton Conversion
• A Note on Noncommutative Brane Inflation
• Generalized Space-time Noncommutative Inflation
• Anisotropic power-law inflation for a conformal-violating Maxwell model
• Axially magnetized Dark Energy cosmological model
• CMB with the background primordial magnetic field
• Cosmic magnetization in curved and Lorentz violating space-times
• Narrowing the window of inflationary magnetogenesis
• Superhorizon magnetic fields
• Effects of non-linearities on magnetic field generation
• Noncommutative KKLMMT Model
• Large-scale magnetic fields from inflation due to a $CPT$-even Chern-Simons-like term with Kalb-Ramond and scalar fields
• Effects of a primordial magnetic field with log-normal distribution on the cosmic microwave background
• Constraints on the multi-lognormal magnetic fields from the observations of the cosmic microwave background and the matter power spectrum
• Generalized Non-Commutative Inflation
• Correlated curvature perturbations and magnetogenesis from the GUT gauge bosons
• Flow equations in generalized braneworld scenarios
• Slow-roll reconstruction for running spectral index
• Production of photons in a bouncing universe
• MHD waves within Noncommutative Maxwell theory
• Large-scale magnetic fields from inflation in teleparallel gravity
• Primordial Magnetic Field Generated in Natural Infation
• Hidden in the background: a local approach to CMB anomalies
• Primordial magnetic fields in theories of gravity with non-minimal coupling between curvature and matter