Reparametrization invariant action for Gravity with Dynamical Determinant of Metric
arXiv:2402.19010
Abstract
We present manifestly reparametrization invariant action for theory of gravity with dynamical determinant of metric. We show that it is similar to a reparametrization invariant action for unimodular gravity. We determine canonical form of the action and study structure of constraints.
22 pages