Gravity Resonance Spectroscopy and Einstein-Cartan Gravity

The qBounce experiment offers a new way of looking at gravitation based on quantum interference. An ultracold neutron is reflected in well-defined quantum states in the gravitypotential of the Earth by a mirror, which allows to apply the concept of gravity resonance spectroscopy (GRS). This experiment with neutrons gives access to all gravity parametersas the dependences on distance, mass, curvature, energy-momentum as well as on torsion. Here, we concentrate on torsion