(In)equivalence of metric-affine and metric effective field theories
(In)equivalence of metric-affine and metric effective field theories
Abstract In a geometrical approach to gravity the metric and the (gravitational) connection can be independent and one deals with metric-affine theories. We construct the most general action of metric-affine effective field theories, including a generic matter sector, where the connection does not carry additional dynamical fields. Among other things, …