Second post-Newtonian order radiative dynamics of inspiralling compact binaries in the effective field theory approach
Adam K. Leibovich, Natália T. Maia, Ira Z. Rothstein, Zixin Yang
Abstract
We use the effective field theory (EFT) framework to compute the mass quadrupole moment, the equation of motion, and the power loss of inspiralling compact binaries at the second order in the post-Newtonian (PN) approximation. We present expressions for the stress-energy pseudotensor components of the binary system in higher PN orders. The 2PN correction to the mass quadrupole moment as well as to the acceleration computed in the linearized harmonic gauge presented here are the ingredients needed for the calculation of the next-to-next-to leading order radiation reaction force, which will be presented elsewhere. While this paper reproduces known results, it supplies the building blocks necessary for future higher order calculations in the EFT methodology.