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DTSTART;TZID=Europe/Madrid:20260309T150000
DTEND;TZID=Europe/Madrid:20260309T160000
DTSTAMP:20260405T222345
CREATED:20260119T104415Z
LAST-MODIFIED:20260309T065159Z
UID:24220-1773068400-1773072000@www.ift.uam-csic.es
SUMMARY:Seminar: 'How string theory computes quantum gravity amplitudes'
DESCRIPTION:Title: ‘How string theory computes quantum gravity amplitudes’ \nSpeaker: Lorenz Eberhardt (U. Amsterdam) \nVenue&Time: Red Room / 15:00 \nAbstract: String theory provides a framework in which quantum gravitational scattering amplitudes are ultraviolet finite and computable in perturbation theory. These amplitudes are defined by integrating over the moduli space of Riemann surfaces\, replacing the Feynman diagram expansion of field theory by a sum over worldsheet topologies. I will review how this definition arises and explain structural properties such as UV-finiteness\, dual resonance and their Regge behavior. I will then discuss recent progress in explicit computations\, focusing on one-loop amplitudes and new results on their high-energy behavior.
URL:https://www.ift.uam-csic.es/event/seminar-lorenz-eberhardt-amsterdam/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
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