Институт теоретической и математической физики

МГУ имени М.В. Ломоносова

ITMP Seminar "Gravitational bound waveforms from amplitudes"

ITMP Seminar
12 марта 2024

Dear Colleagues,

We are pleased to announce that the next ITMP seminar will be held on Wednesday, Mar 13, 18:00 (Moscow time). It will be organised via Zoom.

Speaker: Dr. Riccardo Gonzo, University of Edinburgh

Title: Gravitational bound waveforms from amplitudes

Abstract: We will develop a formalism to study the gravitational waveform emitted during the inspiral phase of the dynamics of compact objects (black holes, neutron starts) using the effective field theory approach with a point particle description. First, we will consider the scattering setup for the two-body problem where a natural on-shell relation between waveforms and amplitudes can be established in the classical limit. We will then derive a new surprising on-shell map between scattering and bound waveforms, which is inspired and confirmed by Post-Newtonian calculations with the standard time-domain multipoles, and we will show that a resummation of the perturbative series is required to make contact with phenomenological waveform models.

If you want to join the seminar please register here before 16:00, March 13 here.

If you would like to subscribe to newsletters about ITMP seminars, please, contact seminar@itmp.msu.ru



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