From Scattering Amplitudes to Gravitational-Wave Predictions for Compact Binaries

Workshop, Universität Zürich & ETH Zürich, 4-15 July 2022

Since the first direct observation of gravitational waves in 2016 by LIGO/Virgo almost 100 coalescence events have been collected for a multitude of spin and mass configurations. The discoveries will drastically increase with the next generation ground based observatories and the space-borne Laser Interferometer Space Antenna (LISA).

Theoretical predictions for compact binary systems provide important input to discover gravitational-wave signals and to characterize the waves’ source. Recent years have seen an increased activity in the field. Multiple advanced methods such as numerical relativity, gravitational self-force, effective field theory, perturbation theory in gravity, non-relativistic general relativity and, most recently, scattering amplitudes are applied to obtain precise predictions for gravitational-wave observables. Accurate waveform modeling, along with the ability to survey efficiently the parameter space relevant for various types of compact binary sources, from stellar to supermassive black holes, and extreme mass-ratio in-spirals, are pivotal objectives in order to prepare the scientific community to handle the gravitational wave datasets that will be delivered by LISA.

The workshop is addressed to Ph.D. students and postdoctoral-level researchers in Theoretical Astrophysics and Theoretical Physics, aiming at introducing them to cutting-edge methods for field theory to obtain precision predictions for gravitational-wave observables.

The two-week workshop offers 20 hours of introductory lectures in the first week and and a number of keynote talks on current research in the second week.

The introductory lectures will cover the following topics:

  1. LISA data and phenomenology of gravitational wave sources
  2. Characterization of waveforms from astrophysical sources
  3. Scattering amplitudes and gravitational radiation
  4. Scattering amplitudes and conservative dynamics
  5. Effective field theory for gravity
  6. Self-force theory in gravity


Update 12.06.2022: Late applications are accepted.
Please register via the link on the right.If you have any questions please contact Suzanne: suzanne[at]


Editable live notes and reading list for the workshop. All participants should feel free to add questions and comments!

Upload slides here.

The first week of the workshop will take place at the Irchel Campus of the University of Zurich (postal address: Winterthurerstrasse 190, 8057 Zurich). Rooms: Y22 F62/68/70. Use the entrance where the Cafeteria Seerose, take the stairs down and turn to the left.

The second week of the workshop will take place at the Hönggerberg campus of the ETH Zürich (postal address: Wolfgang-Pauli-Str. 27, 8093 Zürich). Rooms: HIT E 41.1 / HIT E 51.

>> Download programme and city map (PDF)