Mode Spectrum of the Electromagnetic Field in Open Universe Models
arXiv:1110.2019 · doi:10.1111/j.1365-2966.2012.21082.x
Abstract
We examine the mode functions of the electromagnetic field on spherically symmetric backgrounds with special attention to the subclass which allows for the foliation as open Friedmann-Lemaitre (FL) spacetime. It is well-known that in certain scalar field theories on open FL background there can exist so-called supercurvature modes, their existence depending on parameters of the theory. Looking at specific open universe models, such as open inflation and the Milne universe, we find that no supercurvature modes are present in the spectrum of the electromagnetic field. This excludes the possibility for superadiabatic evolution of cosmological magnetic fields within these models without relying on new physics or breaking the conformal invariance of electromagnetism.
6 pages, 1 figure; v2: minor revision, appendix added, accepted for publication in MNRAS
References in corpus (6)
- Evidence for strong extragalactic magnetic fields from Fermi observations of TeV blazars
- Eternal inflation and its implications
- EGMF Constraints from Simultaneous GeV-TeV Observations of Blazars
- Evolution of Magnetic Fields in Freely Decaying Magnetohydrodynamic Turbulence
- Can the observed large scale magnetic fields be seeded by helical primordial fields?
- Cosmological magnetic field survival
Cited by in corpus (14)
- The origin, evolution and signatures of primordial magnetic fields
- Early Cosmological Evolution of Primordial Electromagnetic Fields
- Cosmological Magnetic Fields
- Origin of cosmic magnetic fields: Superadiabatically amplified modes in open Friedmann universes
- On the challenges in the choice of the non-conformal coupling function in inflationary magnetogenesis
- Evolution of primordial magnetic fields in mean-field approximation
- Cosmic magnetization in curved and Lorentz violating space-times
- CMB and matter power spectra from cross correlations of primordial curvature and magnetic fields
- Completing magnetic field generation from gravitationally coupled electrodynamics with the curvaton mechanism
- A Holographic Bound on Cosmic Magnetic Fields
- Can a marginally open universe amplify magnetic fields?
- Is there supercurvature mode of massive vector field in open inflation?
- Holography of Little Inflation
- Cosmic Electromagnetic Fields due to Perturbations in the Gravitational Field