184 citations · 651 across the 16 of their papers we have counts for
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Post-Minkowskian Scattering Angle in Einstein Gravity
N. E. J. Bjerrum-Bohr, Andrea Cristofoli, Poul H. Damgaard
Using the implicit function theorem we demonstrate that solutions to the classical part of the relativistic Lippmann-Schwinger equation are in one-to-one correspondence with those…
Scalar-Graviton Amplitudes
N. E. J. Bjerrum-Bohr, Andrea Cristofoli, Poul H. Damgaard +1
Using the CHY-formalism and its extension to a double cover we provide covariant expressions for tree-level amplitudes with two massive scalar legs and an arbitrary number of gravi…
Post-Minkowskian Hamiltonians in Modified Theories of Gravity
Andrea Cristofoli
The aim of this note is to describe the computation of post-Minkwoskian Hamiltonians in modified theories of gravity. Exploiting a recent relation between amplitudes of massive sca…
On Post-Minkowskian Hamiltonians in General Relativity
Andrea Cristofoli, N. E. J. Bjerrum-Bohr, Poul H. Damgaard +1
We describe the computation of post-Minkowskian Hamiltonians in General Relativity from scattering amplitudes. Using a relativistic Lippmann-Schwinger equation, we relate perturbat…