Primordial Magnetogenesis in a Bouncing Universe

Abstract

We investigate primordial magnetogenesis and the evolution of the electromagnetic field through a quantum bounce, in a model that starts in the far past from a contracting phase where only dust is present and the electromagnetic field is in the adiabatic quantum vacuum state. By including a coupling between curvature and electromagnetism of the form $R{F}_{\mu \nu }{F}^{\mu \nu }$, we find acceptable magnetic field seeds within the current observational constraints at 1 mega-parsec (Mpc), and that the magnetic power spectrum evolves as a power-law with spectral index $n_B=6$. It is also shown that the electromagnetic backreaction is not an issue in the model under scrutiny.

33 pages, 9 figures. Matches the published version in Physical Review D

References in corpus (23)

• Generation of Large-Scale Magnetic Fields in Single-Field Inflation
• Magnetic fields from inflation?
• N-flationary magnetic fields
• Large-scale magnetic fields in the inflationary universe
• Adding helicity to inflationary magnetogenesis
• Cosmology without inflation
• A non inflationary model with scale invariant cosmological perturbations
• Challenges in Inflationary Magnetogenesis: Constraints from Strong Coupling, Backreaction and the Schwinger Effect
• Seed perturbations for primordial magnetic fields from MSSM flat directions
• Constraints on Primordial Magnetic Fields from Planck combined with the South Pole Telescope CMB B-mode polarization measurements
• Inflation-Produced Magnetic Fields in R^n F^2 and I F^2 models
• Thermal Fluctuations and Bouncing Cosmologies
• Updated constraint on a primordial magnetic field during big bang nucleosynthesis and a formulation of field effects
• Early Cosmological Evolution of Primordial Electromagnetic Fields
• Vector Perturbations in a Contracting Universe
• Cosmological magnetic fields from inflation in extended electromagnetism
• Schwinger Mechanism During Inflation
• Lee-Wick radiation induced bouncing universe models
• Magnetogenesis in bouncing cosmology
• Magnetic reheating
• Completing magnetic field generation from gravitationally coupled electrodynamics with the curvaton mechanism
• An upper limit on primordial magnetic fields from ultra-faint dwarf galaxies
• Magnetogenesis from isocurvature initial conditions

Cited by in corpus (2)

• Inflationary magnetogenesis with reheating phase from higher curvature coupling
• Dynamical black hole in a bouncing universe