Berlin 2015 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 15: Fundamental Problems and General Formalism

GR 15.1: Talk

Thursday, March 19, 2015, 11:10–11:30, H 2013

On a unified framework for test body equations of motion in gravity — •Dirk Puetzfeld — ZARM, U Bremen, Germany

We present a unified covariant multipolar framework for the description of test bodies in gravity. The framework covers a very large class of gravitational theories, and one can use it as a theoretical basis for systematic tests of gravity by means of extended deformable test bodies. The classes of theories covered range from simple generalizations of General Relativity, e.g. encompassing additional scalar fields, to theories with additional geometrical structures, which are needed for the description of microstructured matter. Furthermore, we discuss the impact of nonstandard couplings between matter and gravity on the resulting test body equations of motion.