Inflation from Charged Scalar and Primordial Magnetic Fields?

Abstract

A model of inflation is presented where the inflaton field is a complex scalar field coupled to a U(1) gauge field. Due to the axial symmetry of the potential, the inflation is driven by the radial direction while the angular field is gauged by U(1). Due to the coupling of the inflaton to the gauge field, a time dependent mass term for the gauge field is generated dynamically and conformal invariance is broken. We study whether a significant amount of primordial magnetic fields can be generated during inflation by allowing a time-dependent U(1) gauge kinetic coupling.

New references added, figures are modified, typos are corrected, the PRD version.

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Cited by in corpus (31)

• Gauge Fields and Inflation
• Primordial magnetogenesis
• Anisotropic Inflation from Charged Scalar Fields
• Correlation of inflation-produced magnetic fields with scalar fluctuations
• δN Formalism in Anisotropic Inflation and Large Anisotropic Bispectrum and Trispectrum
• Numerical simulations of the decay of primordial magnetic turbulence
• Stable solutions of inflation driven by vector fields
• Evolution of inflation-generated magnetic field through phase transitions
• Curvature Perturbations in Anisotropic Inflation with Symmetry Breaking
• Parity Violating Statistical Anisotropy
• Vector dark matter production from inflation with symmetry breaking
• Issues on Generating Primordial Anisotropies at the End of Inflation
• Primordial Anisotropies in Gauged Hybrid Inflation
• The charged inflaton and its gauge fields: preheating and initial conditions for reheating
• Gauge field back-reaction in Born Infeld cosmologies
• Scale-invariant helical magnetic field evolution and the duration of inflation
• Revisiting Magnetogenesis during Inflation
• Dark photon dark matter from charged inflaton
• On inflating magnetic fields, and the backreactions thereof
• Primordial Magnetogenesis in a Bouncing Universe
• Anisotropic separate universe and Weinberg's adiabatic mode
• Primordial Helical Magnetic Fields from Inflation?
• Primordial tensor bispectra in $\mu$-CMB cross-correlations
• Geometric structure of multi-form-field isotropic inflation and primordial fluctuations
• Intergalactic medium rotation measure of primordial magnetic fields
• Large-scale magnetic fields from inflation due to a $CPT$-even Chern-Simons-like term with Kalb-Ramond and scalar fields
• Evolution of magnetic fields through cosmological perturbation theory
• Super-horizon resonant magnetogenesis during inflation
• Vector dark matter production during inflation in the gradient-expansion formalism
• Primordial magnetogenesis in a bouncing model with dark energy
• Scalar-assisted magnetogenesis during the radiation-dominated epoch