A spacetime algebra approach to moving bi-isotropic media

In this paper we show, specifically, that a moving Tellegen medium, in the lab frame, is different from a moving isotropic medium - in the sense that both the refractive index surfaces and the electromagnetic fields are affected by the Tellegen parameter, in a way that could not be addressed as an equivalent moving reciprocal isotropic medium. Accordingly, this result highlights another physical manifestation of the irreducibility character of nonreciprocity due to Tellegen media.