On a Theory for Nonminimal Gravitational-Electromagnetic Coupling Consistent with Observational Data

TL;DR

This paper explores a nonminimal gravitational-electromagnetic coupling theory that explains primordial magnetic fields, with predictions aligning well with observed galactic magnetic field strengths.

Contribution

It proposes a new nonminimal coupling model that accounts for primordial magnetic fields consistent with observational data.

Findings

Predicted galactic magnetic fields match observations

Supports nonminimal coupling as a mechanism for seed magnetic fields

Provides a theoretical framework consistent with empirical data

Abstract

The idea that the seed primordial magnetic fields can be explained by the nonminimal coupling between gravitational and electromagnetic fields is discussed. The predicted values of the magnetic field of the spiral galaxies are in agreement with the observations.