Upcoming Talks

The hyperboloidal framework builds upon Penrose’s seminal work on the “Conformal Treatment of Infinity.” It’s an elegant concept that enables us to approach the black hole event horizon and the wave zone “at the same time”. Over the decades, it has become an indispensable tool in black hole perturbation theory, particularly when considering an expansion beyond the linear regime. In this presentation, I will delve into the latest advancements in the field. This includes introducing the so-called Minimal Gauge, a simple strategy to construct hyperboloidal slices and exploring its applications in gravitational wave physics. After reviewing contributions to fundamental concepts in the ringdown phase, I’ll discuss technical advances in the modeling of extreme mass ratio inspirals through the self-force program.

Speaker: Rodrigo Panosso Macedo (Niels Bohr Institute, Copenhagen)
Friday 10 October 2025, 13:00-14:00
Venue: Potter Room / Zoom https://cam-ac-uk.zoom.us/j/87235967698.
Series: DAMTP Friday GR Seminar; organiser: Daniela Cors.

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Thu 09 Oct 12:00: Einstein metrics, Interacting QFT’s and Confinement in four and Five dimensions

Fri, 03/10/2025 - 15:45

Einstein metrics, Interacting QFT’s and Confinement in four and Five dimensions

M-theory provides a geometric framework to describe a variety of interesting quantum field theories in which the QFT ’s arise from Einstein metrics. We motivate a precise definition of this framework which (partly) takes the form of the space of complete, asymptotically conical Ricci flat manifolds in various dimensions. We show how this provides insights into various strongly coupled systems such as non-Abelian gauge theories in four and more dimensions and leads to confining string theories in four and five dimensions. The four dimensional strings can be compared to flux tubes in Yang-Mills theories.

Speaker: Bobby Acharya (ICTP Trieste)
Thursday 09 October 2025, 12:00-13:00
Venue: MR9/Zoom https://cam-ac-uk.zoom.us/j/81827907718.
Series: DAMTP Friday GR Seminar; organiser: Daniela Cors.

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Tue 28 Oct 16:00: Title to be confirmed

Fri, 03/10/2025 - 15:12

Title to be confirmed

Abstract not available

Speaker: Walter Gekelman (UCLA)
Tuesday 28 October 2025, 16:00-17:00
Venue: MR14 DAMTP and online.
Series: DAMTP Astrophysics Seminars; organiser: David Hosking.

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Wed 15 Oct 14:00: TBD

Fri, 03/10/2025 - 15:10

TBD

Abstract not available

Speaker: Gabriel Verrier (CEA Saclay, France)
Wednesday 15 October 2025, 14:00-15:00
Venue: MR14 DAMTP and online.
Series: DAMTP Astrophysics Seminars; organiser: Thomas Jannaud.

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Mon 27 Oct 16:00: TBD

Fri, 03/10/2025 - 11:47

TBD

Speaker: Nicolás Cuello (IPAG Grenoble)
Monday 27 October 2025, 16:00-17:00
Venue: MR14 DAMTP and online.
Series: DAMTP Astrophysics Seminars; organiser: Thomas Jannaud.

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Tue 21 Oct 13:00: The architecture of planetary systems: from physical models to AI

Fri, 03/10/2025 - 11:35

The architecture of planetary systems: from physical models to AI

Present-day astronomical facilities allow detecting and characterizing Earth twins, provided we know where to search. In this context, understanding the correlations between properties of planets in the same system, also called the architecture of planetary systems, can provide valuable guidance to optimize observational campaigns. In this talk, I will present models of planetary system formation, the so-called ‘Bern model’, and how they can be used to train generative AI models. I will conclude by presenting an example of predictions made by these new physically informed AI models.