|Tuesday 19 February 2019|
|Events for day: Monday 20 August 2018|
| 14:00 - 15:30 Weekly Seminar|
The motion of localized sources in general relativity: gravitational self-force from quasilocal conservation laws
An idealized "test" body in general relativity moves along a geodesic. However, if the body has a finite mass, this will create additional curvature in the spacetime causing it to deviate from geodesic motion. If the mass is nonetheless sufficiently small, this effect can be treated perturbatively and is known as the body's gravitational self-force. The computation of the self-force is an open problem today not only for foundational interest, but also for direct application in gravitational-wave astronomy. In particular, the observation of extreme-mass-ratio binaries by the next generation of space-based detectors such as LISA will rely cruci ...