Gravitational radiation-reaction in arbitrary dimension
Ofek Birnholtz, Shahar Hadar
TL;DR
This paper develops a theoretical framework using effective field theory to analyze gravitational radiation-reaction effects in arbitrary spacetime dimensions, providing new formulas for radiation reaction and quadrupole moments.
Contribution
It introduces the radiation-reaction effective action and generalized Quadrupole formula in arbitrary dimensions, extending previous results to +1PN order.
Findings
Derived the radiation-reaction effective action in arbitrary dimensions.
Generalized the Quadrupole formula to +1PN order.
Provided a unified treatment of radiative fields and sources using the Closed Time Path formalism.
Abstract
We use effective field theory tools to study non-conservative effects in systems of gravitating objects in general spacetime dimension. Using the classical version of the Closed Time Path formalism, we treat both the radiative gravitational field and its dynamical sources within a single action principle. New results include the radiation-reaction effective action in arbitrary dimensions to leading and +1PN orders, as well as the generalized Quadrupole formula to order +1PN.
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