2 papers
astro-ph.CO2021
Isolating non-linearities of light propagation in inhomogeneous cosmologies
Michele Grasso, Eleonora Villa, Mikołaj Korzyński +1
A new formulation for light propagation in geometric optics by means of the Bi-local Geodesic Operators is considered. We develop the BiGONLight Mathematica package, uniquely desig…
gr-qc2019
Geometric optics in relativistic cosmology: new formulation and a new observable
Mikołaj Korzyński, Eleonora Villa
We discuss a new formalism for light propagation which can be used within the regime of validity of geometric optics, but with no limitation on the scales of interest: from inside…