Massive motion in area metric spacetimes

Raffaele Punzi, Frederic P. Schuller, Mattias N. R. Wohlfarth
2009 Physical Review D  
Gravity theories that can be viewed as dynamics for area metric manifolds, for which Brans-Dicke theory presents a recently studied example, require for their physical interpretation the identification of the distinguished curves that serve as the trajectories of light and massive matter. Complementing previous results on the propagation of light, we study effective massive point particle motion. We show that the relevant geometrical structure is a special Finsler norm determined by the area
more » ... ric, and that massive point particles follow Finsler geodesics.
doi:10.1103/physrevd.79.124025 fatcat:y4l45rhbvrfxdgho5ywrboy4m4