Abstract
We propose a lattice gravity action based on the gauge-theory point of view. We avoid a problem, the action potentially going to infinity by taking the link length to a constant (the lattice constant). By fixing the local Lorentz gauge freedom, we obtain a gauge-fixed version of the -dimensional action as a sum of () which is a compactified version of Regge calculus. The fermion gravity coupling term can be constructed in a similar way. We point out the possibility that this lattice gravity action approaches the Einstein action in the long-range limit if the action has an ultraviolet fixed point.
- Received 30 July 1990
DOI:https://doi.org/10.1103/PhysRevD.43.1150
©1991 American Physical Society