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15.02.2024 (Thursday)

Kerr binary dynamics from minimal coupling and double copy

Regular Seminar Francesco Alessio (Nordita)

at:
14:00 QMUL
room G. O. Jones 610 and Zoom
abstract:

I will show how to construct a Lagrangian based on a notion of minimal coupling that includes classical spin effects that is relevant to describe Kerr binaries in the post-Minkowski (PM) regime. Using such Lagrangian, I will derive expressions for the classical amplitude for the elastic 2—>2 process at 1PM and 2PM. I will then consider radiation reaction effects and their connection to the imaginary part of the 3PM spinning eikonal phase.