Speaker
Adam Pound
(University of Southampton)
Description
I discuss the status of second-order self-force formulations and computations, which will be necessary for accurate models of EMRIs.
In the first part of the talk, I describe recent progress on the foundations of the theory. A principal feature of the second-order field equations is that the retarded field does not have a distributionally well-defined source, instead having a free boundary value in a region around the small object. This challenge has historically been addressed using a puncture scheme. However, it can also be eliminated entirely with a judicious choice of gauge, which may radically simplify future numerical work.
In the second part of the talk, I describe ongoing work to numerically implement a second-order, two-timescale puncture scheme for quasicircular orbits in Schwarzschild spacetime. This will lead into the talk by Wardell.
Primary author
Adam Pound
(University of Southampton)
Co-authors
Barry Wardell
(University College Dublin)
Jeremy Miller
(University of Southampton)
Prof.
Leor Barack
(University of Southampton)
Niels Warburton
(University College Dublin)
