München 2009 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 15: Experimente zur Gravitation II

GR 15.1: Vortrag

Freitag, 13. März 2009, 08:30–08:50, A214

Testing Finslerian space-times — •Claus Lämmerzahl — ZARM, University Bremen, 28359 Bremen

Finsler geometry is a generalization of Riemannian geometry with a generalized concept of a distance. In some cases effective theories resulting from quantum gravity scenarios are related to Finslerian concepts. Such generalized space--time structures allow for (i) a metric induced violation of Lorentz invariance which is beyond scenarios introducing just additional background fields, and (ii) a modification of the equations of motion of particles. Though the universality of free fall is valid, gravity cannot be transformed away in Finslerian space-times. We develop a test theory for describing Finslerian deviations from Riemannian space-times and confront it with tests of Lorentz invariance in the photon as well as in the matter sector, and with observations of satellite and planetary orbits.