Modified Teleparallel Gravity induced by quantum fluctuations

Understand

In the semi-classical regime, quantum fluctuations embedded in a Riemannian spacetime can be effectively recast as classical back reactions and manifest themselves in the form of non-minimal couplings between matter and curvature.

• In this work, we exhibit that this semi-classical description can also be applied within the teleparallel formulation.
• In the teleparallel formulation, quantum fluctuations generically lead to non-minimal torsion-matter couplings.
• Due to the equivalence between the (classical) Einstein gravity in the Riemannian description and that in teleparallel description, some effective models which were constructed using Riemannian description can be reproduced completely using the teleparallel description.