Gauge fields and inflation
The isotropy and homogeneity of the cosmic microwave background (CMB) favors “scalar
driven” early Universe inflationary models. However, gauge fields and other non-scalar …
driven” early Universe inflationary models. However, gauge fields and other non-scalar …
Constraints on primordial magnetic fields from magnetically-induced perturbations: current status and future perspectives with LiteBIRD and future ground based …
D Paoletti, F Finelli - Journal of Cosmology and Astroparticle …, 2019 - iopscience.iop.org
We present the constraints on the amplitude of magnetic fields generated prior to the
recombination using CMB temperature and polarization anisotropy data from Planck 2018 …
recombination using CMB temperature and polarization anisotropy data from Planck 2018 …
Observable non-Gaussianity from gauge field production in slow roll inflation,<? format?> and a challenging connection with magnetogenesis
N Barnaby, R Namba, M Peloso - … Review D—Particles, Fields, Gravitation, and …, 2012 - APS
In any realistic particle physics model of inflation, the inflaton can be expected to couple to
other fields. We consider a model with a dilatonlike coupling between a U (1) gauge field …
other fields. We consider a model with a dilatonlike coupling between a U (1) gauge field …
LiteBIRD science goals and forecasts: primordial magnetic fields
D Paoletti, JA Rubino-Martin, M Shiraishi… - … of Cosmology and …, 2024 - iopscience.iop.org
We present detailed forecasts for the constraints on the characteristics of primordial
magnetic fields (PMFs) generated prior to recombination that will be obtained with the …
magnetic fields (PMFs) generated prior to recombination that will be obtained with the …
Inflationary magnetogenesis without the strong coupling problem
The simplest gauge invariant models of inflationary magnetogenesis are known to suffer
from the problems of either large backreaction or strong coupling, which make it difficult to …
from the problems of either large backreaction or strong coupling, which make it difficult to …
Small scale induced gravitational waves from primordial black holes, a stringent lower mass bound, and the imprints of an early matter to radiation transition
In all inflationary scenarios of primordial black hole (PBH) formation, amplified scalar
perturbations inevitably accompany an induced stochastic gravitational wave background …
perturbations inevitably accompany an induced stochastic gravitational wave background …
Challenges in the choice of the nonconformal coupling function in inflationary magnetogenesis
Primordial magnetic fields are generated during inflation by considering actions that break
the conformal invariance of the electromagnetic field. To break the conformal invariance, the …
the conformal invariance of the electromagnetic field. To break the conformal invariance, the …
Constraints on primordial magnetic fields from their impact on the ionization history with Planck 2018
We update and extend our previous cosmic microwave background anisotropy constraints
on primordial magnetic fields through their dissipation by ambipolar diffusion and …
on primordial magnetic fields through their dissipation by ambipolar diffusion and …
Consistency relation for cosmic magnetic fields
If cosmic magnetic fields are indeed produced during inflation, they are likely to be
correlated with the scalar metric perturbations that are responsible for the cosmic microwave …
correlated with the scalar metric perturbations that are responsible for the cosmic microwave …
Probing intergalactic magnetic fields with simulations of electromagnetic cascades
We determine the effect of intergalactic magnetic fields on the distribution of high-energy
gamma rays by performing three-dimensional Monte Carlo simulations of the development …
gamma rays by performing three-dimensional Monte Carlo simulations of the development …