Seminars

Title: Cosmological Magnetic Fields from Ultralight Dark Matter Speaker: Robert Brandenberger (McGill) Venue&Time: Red Room / 15:00 Abstract: A coherently oscillating ultralight dark matter field which couples to electromagnetism in the same way as an axion induces a tachyonic instability which leads to the generation of cosmological magnetic fields immediately after the time of recombination. […]

Title: 'How string theory computes quantum gravity amplitudes' Speaker: Lorenz Eberhardt (U. Amsterdam) Venue&Time: Red Room / 15:00 Abstract: 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 […]

Title; 'Effective Field Theory for Thermal Phase transitions' Speaker: Mikael Chala (Granada) Venue&Time: Red Room / 15:00 Abstract: I will present recent progress in applying effective field theory (EFT) to the precise computation of thermal phase transition parameters and the associated gravitational wave spectra. I will also briefly comment on byproducts of this work, including […]

Title: 'Beyond the Minimal Axion: Robustness of Standard Predictions' Speaker: Sung Mook Lee (CERN) Venue & Time: Red Room / 15:00 Abstract: The QCD axion is one of the most compelling candidates for physics beyond the Standard Model, as it can simultaneously solve the strong CP problem and account for the dark matter abundance. In the minimal […]

Title: 'Observing Quantum Gravity in Extremely Cold Horizons' Speaker: Roberto Emparan (Universidad de Barcelona) Venue&Time: Red Room / 15:00 Abstract: Recent developments have revealed that black holes near extremality exhibit large quantum fluctuations in their geometry, marking a controllable breakdown of semiclassical quantum field theory in curved spacetime. In this talk, I will discuss how […]

Title: 'EFTs for BSM: Counting, Ambiguities, and Application' Speaker: Shakeel Ur Rahaman (IPPP Durham). Venue&Time: Red Room / 15:00 Abstract: The two principal frameworks for modeling the Beyond Standard Model physics as an Effective Field Theory (EFT) are the Standard Model EFT (SMEFT) and the Higgs Effective Field Theory (HEFT). SMEFT is constructed in the […]

Title: Symmetry TFTs for Continuous Spacetime Symmetries Speaker: Iñaki Garcia Etxebarria (Durham U.) Venue & Time: Red Room / 3:00 PM Abstract: I will discuss our recent proposal for the Symmetry Topological Field Theory (SymTFT) for global, continuous spacetime symmetries ( https://arxiv.org/abs/2509.07965 ). For a d-dimensional theory, it is given by a (d + 1)-dimensional […]

Title: Probe combination to constrain cosmology in Euclid Speaker: Isaac Tutusaus (ICE, Barcelona) Venue&Time: Red Room / 15:00 Abstract: Following its successful launch in July 2023 and the start of its scientific survey in February 2024, Euclid has become the first stage-IV photometric survey in operations. In addition to its photometric observations, Euclid is also […]

Venue&Time: Red Room / 11:30 / 15:00 PROGRAM: --------------------- 11:00 Welcome coffee --------------------- 11:30h     First Talk Speaker: Jelle Hartong (Edinburgh U.) Title: The Geometry of Gravitational Radiation Abstract: This talk concerns asymptotically flat vacuum solutions of GR in 4 spacetime dimensions. The asymptotics of such metrics is quite intricate and depends on how we […]

Title: 'Traces from Primordial Magnetogenesis'   Speaker: Maria Olalla Olea Romacho (King's College, London)   Venue&Time: Red Room / 15:00 Abstract: Magnetic fields permeate the Universe across a wide range of scales, from galaxies and clusters to the most underdense regions of the cosmic web. Gamma-ray observations of TeV blazars suggest the presence of magnetic […]