2 papers
astro-ph.CO2024
TDiff-fuelled cosmic magnetic fields
Antonio L. Maroto, Alfredo D. Miravet
We explore the consequences of the breaking of diffeomorphism (Diff) invariance in the electromagnetic sector. We consider the breaking of Diff symmetry down to the subgroup of tra…
gr-qc2024
TDiff invariant gauge fields in cosmology
Antonio L. Maroto, Alfredo D. Miravet
We study the dynamics of Abelian gauge fields invariant under transverse diffeomorphisms (TDiff) in cosmological contexts. We show that in the geometric optics approximation, very…