Magneto-transport of 2DEGs ultrastrongly coupled to vacuum fields

In systems with strong light matter coupling, hybrid excitations, called polaritons, arise. We investigate the role of the electronic component of polaritons in the magneto-transport of a coupled light-matter system. We show that the coupling to a Terahertz (THz) resonator, even without external illumination, modifies the linear direct current resistivity. We also study the different contribution to the coupled system of localized and delocalized states, by looking at the magneto-transport under weak illumination.