Abstract
The purpose of the workshop is to gather theorists working on apparently different areas which are nevertheless connected to the recent discovery of gravitational waves. More specifically its aims are to: (i) deepen links and foster new collaborations between the quantum gravitational scattering amplitude and the GR community, leading to the calculation of new, high-order, terms in the post-Newtonian and post-Minkowskian perturbative approaches to the physics of binary systems; (ii) identify new synergies between the GR analytical and numerical communities which have already proved to be so crucial in constructing the waveform templates necessary for the analysis of LIGO/Virgo data; (iii) use recent progress on gravitational scattering and radiation in ultra-relativistic collisions of elementary particles or strings to improve the determination of parameters appearing in the effective-one-body approach to the relativistic two-body problem. This includes profiting from a newly-discovered on-shell construction of gravitational amplitudes from gauge-theory amplitudes; (iv) connect properties of the gravitational wave spectrum at low frequencies to recent developments in soft-graviton theorems at sub- and sub-sub-leading level, including predictions for gravitational memory, BMS asymptotic symmetries, and logarithmic enhancements; (v) explore various consequences of modified gravity theories for the LIGO/Virgo discoveries.

Topics
Analytic and numerical methods for the general relativistic two-body problem High energy gravitational scattering and radiation
New approaches to gravitational amplitudes
Soft theorems and their use for computing GW signals
Alternative theories of gravity

NOTE ON THE WORKSHOP: We inform all applicants that the workshop will be held remotely. Detailed instructions about the remote connection will be sent to the registered participants.

Organizers
Dimitri Colferai (University of Florence), Claudia de Rham (Imperial College London), Alessandro Nagar (INFN, Turin), Donal O’Connell (University of Edinburgh), Pierre Vanhove (CEA, Saclay), Gabriele Veneziano (CERN), Alexander Zhiboedov (CERN)

Local organizer
Dimitri Colferai, Matteo Maria Maglio, Alessio Caddeo

Contact
colferai@fi.infn.it

Related events
Gravitational scattering, inspiral, and radiation (Training Week) - Apr 19, 2021

Gravitational scattering, inspiral, and radiation (Conference) - Apr 26, 2021

Click here for the last updated SCHEDULE

Talks

Date	Speaker	Title	Type	Useful Links
May 04, 2021 - 15:00-16:00	Prahar Mitra	Introduction to BMS	Seminar					Video
May 04, 2021 - 16:30-17:30	Biswajit Sahoo	A systematic approach to understand all order soft theorems and tail memories	Seminar		Slides			Video
May 05, 2021 - 14:30-15:30	Geoffrey Compere	Angular momentum in GR: the role of generalized BMS symmetry	Seminar		Slides			Video
May 05, 2021 - 16:00-17:00	Miguel Campiglia	BMS symmetry at time-infinity	Seminar					Video
May 06, 2021 - 15:00-16:00	Keefe Mitman	Gravitational Memory in Numerical Relativity: Computing Memory Effects, Correcting Waveforms, and the importance of BMS Frames	Seminar		Slides			Video
May 06, 2021 - 16:30-17:30		Discussion animated by Thibault Damour, Ashoke Sen, Andy Strominger	Discussion					Video
May 07, 2021 - 15:00-16:00	Maurizio Firrotta	String interactions and memory effects	Seminar		Slides			Video
May 10, 2021 - 16:30-17:30	Agustin Sabio Vera	The perturbative Regge limit	Seminar		Slides			Video
May 10, 2021 - 17:30-18:30		Discussion	Discussion
May 11, 2021 - 15:00-16:00	Radu Roiban	Particle physics methods for higher orders in the PN and PM expansion	Seminar					Video
May 11, 2021 - 16:00-17:00	Andreas Maier	The gravitational potential at fifth post-Newtonian order	Seminar		Slides			Video
May 11, 2021 - 17:00-18:00	Donato Bini	Hyperboliclike encounters in a two-body system: Analytical treatment, recent developments and open problems	Seminar		Slides			Video
May 12, 2021 - 15:00-16:00	Mao Zeng	Integrals for conservative and radiative binary dynamics	Seminar		Slides			Video
May 12, 2021 - 16:00-17:00	Carlo Heissenberg	Loop integrals in the soft region and the gravity eikonal	Seminar		Slides			Video
May 13, 2021 - 15:00-16:00	Uli Sperhake	Grazing collisions and eccentric inspirals of black holes	Seminar		Slides
May 13, 2021 - 16:00-17:00	Hannes Reuter	Hyperbolic-like Encounters of Binary Black Holes with the numerical relativity code SpEC	Seminar		Slides
May 13, 2021 - 17:00-18:00	Seth Hopper	Hyperbolic encounters between spinning binary black holes	Seminar					Video
May 14, 2021 - 15:00-16:00	Mariana Carrillo Gonzalez	Conservative Potential from Scattering Amplitudes for Binary Systems with Conformal Coupling to Galileons	Seminar		Slides			Video
May 14, 2021 - 16:00-17:00	Rafael Aoude	Scattering amplitudes for Heavy Particle Effective Theories	Seminar		Slides			Video
May 17, 2021 - 15:00-16:00	Riccardo Gonzo	Waveforms from the KMOC formalism and coherent states	Seminar		Slides			Video
May 17, 2021 - 16:00-17:00	Massimiliano Riva	Gravitational Bremsstrahlung in the Post-Minkowskian Effective Field Theory	Seminar		Slides			Video
May 17, 2021 - 17:00-18:00	Paolo Di Vecchia (Nordita and Niels Bohr Institute)	Wave-form from unitarity	Seminar		Slides			Video
May 18, 2021 - 15:00-16:00	Ludovic Planté	Classical Gravity from Loop Amplitudes	Seminar		Slides			Video
May 18, 2021 - 16:00-17:00	Gustav Mogull	Gravitational Bremsstrahlung from Spinning Bodies using a Worldline QFT	Seminar		Slides			Video
May 18, 2021 - 17:00-17:30	Enrico Herrmann	Collider physics tools for dissipative effects in binary dynamics (part I)	Seminar		Slides			Video
May 18, 2021 - 17:30-18:00	Michael Ruf	Collider physics tools for dissipative effects in binary dynamics (part II)	Seminar					Video
May 19, 2021 - 15:00-16:00	Gregor Kälin	Post-Minkowskian Framework and the Boundary-To-Bound Dictionary for Gravitational Dynamics	Seminar		Slides			Video
May 19, 2021 - 16:00-16:30	Chia-Hsien Shen	Amplitudes, Effective field theory, and Conservative Two-body Dynamics	Seminar					Video
May 19, 2021 - 16:30-17:00		Discussion on bound vs unbound problem	Discussion
May 20, 2021 - 15:00-16:00	Alexander Ochirov	Classical scattering of spinning black holes from quantum amplitudes	Seminar		Slides			Video
May 20, 2021 - 16:00-17:00	Chia Horng Sheng	Tidal Deformation and Dissipation of Rotating Black Hole	Seminar		Slides			Video
May 21, 2021 - 15:00-15:45	Nava Gaddam	Gravitational scattering at impact parameters L_P << b << R_S and the black hole S-matrix	Seminar		Slides			Video
May 21, 2021 - 15:45-16:30	Justinas Rumbutis	Double Copy Relations in Massive Theories	Seminar		Slides			Video
May 21, 2021 - 16:30-18:00		Inspiralling discussions around the Two-Body Problem	Discussion