Cosmological Frontiers in Fundamental Physics 2025

Jun 11, 2025, 8:30 AM → Jun 13, 2025, 6:30 PM Europe/Paris

Amphitéâtre Buffon - Université Paris Cité (Paris)

This meeting has taken place yearly for two decades. It is organized jointly by a triangle: The Astroparticle and Cosmology Lab (APC) in Paris, the Higgs Centre for Theoretical Physics in Edinburgh, and the Perimeter Institute for Theoretical Physics in Waterloo, Canada

It is an informal meeting whose primary goal is to contrast novel theoretical ideas from fundamental physics with the cosmological arena, as well as novel ideas for measurements in the cosmological context with the possible theoretical models that can be tested.

For this, the meeting has ample time for discussions and interactions and few talks.

Wed, June 11

8:30 AM → 9:00 AM Registration

9:00 AM → 10:00 AM An open system approach to cosmology

Speaker: Enrico Pajer

Cosmo_Frontiers_Paris_Open_Sys_June_2025.pdf

10:00 AM → 11:00 AM The separate universe approach to loop corrections

Speaker: David Seery

Cosmological Frontiers 2025.pdf

11:00 AM → 11:30 AM Coffee break

11:30 AM → 12:30 PM Searches for High-Energy Neutrinos from the Mediterranean Sea

Speaker: Antoine Kouchner

12:30 PM → 2:00 PM Lunch

2:00 PM → 3:00 PM The ACT Data Release 6

Speaker: Thibaut Louis

ACT_data_release6_cosmofrontiers_noAnim.pdf

3:00 PM → 4:00 PM Interacting field theories in expanding spacetimes

Speaker: Alan Rios Fukelman

ARF-cosmofrontier.pdf

4:00 PM → 4:30 PM Coffee break

4:30 PM → 5:30 PM Black Mirrors: CPT-Symmetric Alternatives to Black Holes

Speaker: Latham Boyle

BlackMirrorCosmologicalFrontiers_June2025.pdf

5:30 PM → 6:30 PM Discussion session

Thu, June 12

9:00 AM → 10:00 AM Search for gravitational waves with Pulsar Timing Array

Speaker: Stanislav Babak

PTA_2025_APC.pdf

10:00 AM → 11:00 AM Where are the supermassive black holes measured by PTAs?

Speaker: Gabriela Sato-Polito

11:00 AM → 11:30 AM Coffee break

11:30 AM → 12:30 PM Detecting single gravitons and probing their acoherence with quantum sensing

Speaker: Sreenath Manikandan

GravitonstalkSreenathKManikandan.pdf

12:30 PM → 2:00 PM Lunch

2:00 PM → 3:00 PM Dynamics of Cosmic Superstrings

Speaker: Joseph Conlon

3:00 PM → 4:00 PM Dark Dimension Cosmology

Speaker: Ignatios Antoniadis

4:00 PM → 4:30 PM Poster session & coffee break

4:30 PM → 5:30 PM Memory burden effect in black holes and cosmology

Speaker: Gia Dvali

5:30 PM → 6:30 PM Discussion session

8:00 PM → 10:30 PM Dinner

Fri, June 13

9:00 AM → 10:00 AM Population and cosmological properties of compact binary coalescences detected by the LIGO, Virgo and KAGRA collaboration

Speaker: Simone Mastrogiovanni

seminar_mastrogiovanni (1).pdf

10:00 AM → 11:00 AM Probing the Cosmos with the Dark Energy Spectroscopic Instrument (DESI)

Speaker: Florian Beutler

11:00 AM → 11:30 AM Coffee break

11:30 AM → 12:30 PM Magnetic and Axionic Wormholes as seeds for Higgs Inflation

Speaker: Panos Betzios

WormAPC.pdf

12:30 PM → 2:00 PM Lunch

2:00 PM → 3:00 PM Mutlimessenger signals from microquasars

Speaker: Dmitri Semikoz

3:00 PM → 4:00 PM Cosmological Magnetic Fields

Speaker: Andrii Neronov

4:00 PM → 4:30 PM Poster session & coffee break

4:30 PM → 5:30 PM Discussion session and concluding remarks