Constructing Covariant Actions for Quantum Gravity with a Unique Vacuum
Analysis
Key Takeaways
- •Addresses the vacuum ambiguity problem in effective quantum gravity.
- •Proposes a constructive framework for formulating 4D covariant actions.
- •Ensures a unique and static vacuum solution.
- •Resolves the curvature polymerisation ambiguity in loop quantum cosmology.
- •Unifies the description of black holes and cosmology.
“The constructive framework produces a fully 4D-covariant action that belongs to the class of generalised extended mimetic gravity models.”