http://arxiv.org/abs/2111.09070
Using the effective field theory framework for extended objects and the coset construction, we build the leading order effective action for the most general compact object allowed in an effective theory of gravity as general relativity. We derive all the covariant building blocks of the theory and construct the relevant terms in the action that are invariant under the symmetries of the problem. Our effective action contains a relativistic point mass term, and relativistic corrections due to spin, charge, size effects and dissipation. Each of the invariant operators that account for the internal structure of the compact object is accompanied by a coefficient that encapsulates its properties. We match the known coefficients of the effective action from the literature, and point out the unknown ones that are to be derived.
I. Martínez
Thu, 18 Nov 21
40/92
Comments: 35 pages