We study the dynamics of a plasma of charged relativistic fermions at very high temperature T≫ m, where m is the fermion mass, coupled to the electromagnetic field. In particular, we …
T Adi, S Libanore, HAG Cruz… - Journal of Cosmology …, 2023 - iopscience.iop.org
Primordial magnetic fields (PMFs) offer a compelling explanation for the origin of observed magnetic fields, especially on extragalactic scales. Such PMFs give rise to excess of power …
We investigate the generation of magnetic fields from inflation, which occurs via breakdown of the conformal invariance of the electromagnetic (EM) field, when coupled with the Ricci …
K Hattori, H Taya, S Yoshida - Journal of High Energy Physics, 2021 - Springer
A bstract We study di-lepton production from a single photon in the presence of a strong constant magnetic field. By the use of the Ritus-basis formalism, we analytically evaluate the …
D Maity, S Pal, T Paul - Journal of Cosmology and Astroparticle …, 2021 - iopscience.iop.org
Effective theory framework based on symmetry has recently gained widespread interest in the field of cosmology. In this paper, we apply the same idea on the genesis of the primordial …
Bouncing scenarios offer an alternative to the inflationary paradigm for the generation of perturbations in the early universe. Recently, there has been a surge in interest in examining …
A Brandenburg, O Iarygina… - Journal of Cosmology …, 2024 - iopscience.iop.org
We describe a novel proposal for inflationary magnetogenesis by identifying the non- Abelian sector of Spectator Chromo Natural Inflation (SCNI) with the SU (2) L sector of the …
The R 2 term in the Starobinsky inflationary model can be regarded as a leading quantum correction to the gravitational effective action. We assume that parity-preserving and parity …
We present improved estimates of the electric charge that black holes could hold when these are embedded in the ionised plasma within galaxies. We have implemented the …