The gravitational Compton amplitude from flat and curved spacetimes at second post-Minkowskian order

Abstract

We utilize various computational techniques in flat and curved backgrounds to calculate the classical gravitational Compton amplitude up to the second post-Minkowskian order. Our novel result supports the use of worldline quantum field theory in non-trivial background spacetimes to obtain new theoretical insights that can both enhance computational efficiency and provide useful cross-checks of results, particularly in the context of classical binary black hole mergers.

32 pages, 1 figure

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Cited by in corpus (1)

• Dynamical Love Numbers for Black Holes and Beyond from Shell Effective Field Theory