About
I will discuss 2 -> 2 scattering in the regime where the wavelength of the scattered objects is comparable to the impact parameter but much larger than any Compton wavelength in the QFT. In this regime - which differs from the eikonal - the Feynman diagram expansion organizes itself naturally in terms of a geometric (or Born) series that iterates an effective "quantum mechanical" potential. We show that in a gravitation context the series becomes a perturbative solution of the Regge-Wheeler or Teukolsky equation. I will discuss two applications of this observation: determination of Love numbers and dissipative effects of compact objects and amplitudes in a Kerr background. (Online Talk)
The talk
Credits and licence
- Institution
- CERN
- Department
- TH String Theory Seminar
- Speaker
- Giulia Isabella
- Year
- 2024
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed