Probing non-Riemannian spacetime geometry
arXiv:0708.1926 · doi:10.1016/j.physleta.2008.09.041
Abstract
The equations of motion for matter in non-Riemannian spacetimes are derived via a multipole method. It is found that only test bodies with microstructure couple to the non-Riemannian spacetime geometry. Consequently it is impossible to detect spacetime torsion with the satellite experiment Gravity Probe B, contrary to some recent claims in the literature.
8 pages, 1 figure, matches published version including the erratum in Phys. Lett. A 373 (2009) 1600