Plane-fronted waves in metric-affine gravity -: art. no. 044021

We study plane-fronted electrovacuum waves in metric-affine gravity theories with a cosmological constant. Their held strengths are, on the gravitational side, curvature R-alpha(beta), nonmetricity Q(alpha beta), torsion T-alpha and, on the matter side, the electromagnetic field strength F. Our starting point is the work by Ozsvath, Robinson, and Rozga on type N gravitational fields in general relativity as coupled to null electromagnetic fields.