Gravitational lensing in dispersive media using geometrical scalars

GABRIEL CRISNEJO; EMANUEL GALLO; ADAM ROGERS; JUSUFI KIMET; JOSE R VILLANUEVA

Valparaiso

Conferencia; V COSMOSUR; 2019

We present two different geometrical approaches to discuss light propagation in dispersive media in static and stationary spacetimes. We show how these methods are powerful to obtain higher order corrections in a gauge-invariant way and to study the motion of (charged)-test massive particles. We also discuss expressions for the optical scalars in terms of components of the energy-momentum tensor.