Probing non-Riemannian spacetime geometry

Understand

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.