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gr-qc2024
Perturbative black-hole and horizon solutions in gravity with explicit spacetime-symmetry breaking
Samy Aoulad Lafkih, Nils A. Nilsson, Marie-Christine Angonin +1
In this paper, we present static and spherically symmetric vacuum solutions to the mass-dimension action of an effective-field theory, choosing the diffeomorphism symmetr…
gr-qc2024
Hamiltonian normal forms for the post-Newtonian binary problem
Christopher Aykroyd, Adrien Bourgoin, Christophe Le Poncin-Lafitte
We revisit the dynamics of the post-Newtonian (PN) two-body problem for two inspiraling compact bodies. Starting from a matter-only reduced Hamiltonian, we present an adapted frame…