Effective actions for compact objects in an effective field theory of gravity. (arXiv:2111.09070v2 [hep-th] UPDATED)
<a href="http://arxiv.org/find/hep-th/1/au:+Martinez_I/0/1/0/all/0/1">Irvin Martínez</a>
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.
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.
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