Name: Théorie, Univers et Gravitation
Start: 2021-12-13T08:50:00+01:00
End: 2021-12-15T19:00:00+01:00
Location: Institut Henri Poincaré (IHP)

Théorie, Univers et Gravitation

from Monday, December 13, 2021 (8:50 AM) to Wednesday, December 15, 2021 (7:00 PM)

Monday, December 13, 2021

8:50 AM Welcome+Introduction
Welcome+Introduction
8:50 AM - 9:00 AM
Room: Amphithéâtre Hermite
9:00 AM Recents developments on inflation - Sébastien Renaux-Pétel (IAP)
Recents developments on inflation
- Sébastien Renaux-Pétel (IAP)
9:00 AM - 9:30 AM
Room: Amphithéâtre Hermite
9:30 AM Quantum Discord and decoherence of inflationary perturbations - Amaury Micheli (IJCLAB)
Quantum Discord and decoherence of inflationary perturbations
- Amaury Micheli (IJCLAB)
9:30 AM - 9:50 AM
Room: Amphithéâtre Hermite Quantum Discord has been proposed as a way to measure the « quantumness » of correlations between two systems. This tool can be applied to study the state of inflationary perturbations, in presence of an environment. The latter will induce decoherence which can in turn result in the destruction of the discord.
9:50 AM Cosmological collider physics at low speeds: a bootstrap approach - Sadra Jazayeri (IAP)
Cosmological collider physics at low speeds: a bootstrap approach
- Sadra Jazayeri (IAP)
9:50 AM - 10:10 AM
Room: Amphithéâtre Hermite
10:10 AM Time evolution of inflationary correlators - Denis Werth (IAP)
Time evolution of inflationary correlators
- Denis Werth (IAP)
10:10 AM - 10:30 AM
Room: Amphithéâtre Hermite
10:30 AM Coffee Break
Coffee Break
10:30 AM - 11:00 AM
Room: Amphithéâtre Hermite
11:00 AM Celestial Amplitudes and Asymptotic Symmetries - Andrea Puhm (Polytechnique)
Celestial Amplitudes and Asymptotic Symmetries
- Andrea Puhm (Polytechnique)
11:00 AM - 11:30 AM
Room: Amphithéâtre Hermite
11:30 AM Hamiltonian formalism for perturbation theory and the Separate Universe - Danilo Artigas (IAS Orsay)
Hamiltonian formalism for perturbation theory and the Separate Universe
- Danilo Artigas (IAS Orsay)
11:30 AM - 11:50 AM
Room: Amphithéâtre Hermite
11:50 AM Cosmic shear with Einstein rings - Pierre Fleury
Cosmic shear with Einstein rings
- Pierre Fleury
11:50 AM - 12:10 PM
Room: Amphithéâtre Hermite
12:10 PM Lunch
Lunch
12:10 PM - 2:00 PM
Room: Amphithéâtre Hermite
2:00 PM Recent developments on gravitational-wave science - Alexandre Le Tiec
Recent developments on gravitational-wave science
- Alexandre Le Tiec
2:00 PM - 2:30 PM
Room: Amphithéâtre Hermite
2:30 PM 3-body problem in general relativity - Adrien Kuntz (SNS Pisa)
3-body problem in general relativity
- Adrien Kuntz (SNS Pisa)
2:30 PM - 2:50 PM
Room: Amphithéâtre Hermite
2:50 PM Probing strong gravity in the vicinity of SMBHs - Frédéric Vincent
Probing strong gravity in the vicinity of SMBHs
- Frédéric Vincent
2:50 PM - 3:10 PM
Room: Amphithéâtre Hermite
3:10 PM New exact cylindrically symmetric solutions of GR - Marie-Noëlle Célérier
New exact cylindrically symmetric solutions of GR
- Marie-Noëlle Célérier
3:10 PM - 3:30 PM
Room: Amphithéâtre Hermite
3:30 PM Coffee break
Coffee break
3:30 PM - 4:00 PM
Room: Amphithéâtre Hermite
4:00 PM Hawking radiation of non-standard black holes - Alexandre Arbey (Université Lyon 1 - IP2I)
Hawking radiation of non-standard black holes
- Alexandre Arbey (Université Lyon 1 - IP2I)
4:00 PM - 4:20 PM
Room: Amphithéâtre Hermite
4:20 PM Scattering in the interior of BHs - Remi Mokdad (Dijon)
Scattering in the interior of BHs
- Remi Mokdad (Dijon)
4:20 PM - 4:40 PM
Room: Amphithéâtre Hermite
4:40 PM Gyroscopic gravitational memory - Blagoje Oblak
Gyroscopic gravitational memory
- Blagoje Oblak
4:40 PM - 5:00 PM
Room: Amphithéâtre Hermite
Tuesday, December 14, 2021
9:00 AM Modified gravity - Karim Noui
Modified gravity
- Karim Noui
9:00 AM - 9:20 AM
Room: Amphithéâtre Hermite
9:20 AM BH perturbations in modified gravity - Hugo Roussille (APC)
BH perturbations in modified gravity
- Hugo Roussille (APC)
9:20 AM - 9:50 AM
Room: Amphithéâtre Hermite
9:50 AM MGCLASS II: a modified gravity solver - Ziad Sakr (IRAP)
MGCLASS II: a modified gravity solver
- Ziad Sakr (IRAP)
9:50 AM - 10:10 AM
Room: Amphithéâtre Hermite
10:10 AM Recent developments on topological defects in cosmology - Danièle Steer (APC)
Recent developments on topological defects in cosmology
- Danièle Steer (APC)
10:10 AM - 10:40 AM
Room: Amphithéâtre Hermite
10:40 AM Coffee break
Coffee break
10:40 AM - 11:10 AM
Room: Amphithéâtre Hermite
11:10 AM Quantum gravity at the corner - Marc Geiller (ENS Lyon)
Quantum gravity at the corner
- Marc Geiller (ENS Lyon)
11:10 AM - 11:40 AM
Room: Amphithéâtre Hermite
11:40 AM Testing fundamental theories of gravity with asymptotic symmetries - Simone Speziale
Testing fundamental theories of gravity with asymptotic symmetries
- Simone Speziale
11:40 AM - 12:00 PM
Room: Amphithéâtre Hermite
12:00 PM Is quantum gravity still out of reach? - Killian Martineau (LPSC)
Is quantum gravity still out of reach?
- Killian Martineau (LPSC)
12:00 PM - 12:20 PM
Room: Amphithéâtre Hermite
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
Room: Amphithéâtre Hermite
2:00 PM Krein space regularization of Infrared divergence in de Sitter space - Mohammad Vahid Takook
Krein space regularization of Infrared divergence in de Sitter space
- Mohammad Vahid Takook
2:00 PM - 2:20 PM
Room: Amphithéâtre Hermite
2:20 PM The eikonal approximation and aspects of causality in gravity - Giulia Isabella (IJCLab)
The eikonal approximation and aspects of causality in gravity
- Giulia Isabella (IJCLab)
2:20 PM - 2:40 PM
Room: Amphithéâtre Hermite
2:40 PM Classical string backgrounds with a dS spacetime and swampland conjectures - David Andriot (LAPTh)
Classical string backgrounds with a dS spacetime and swampland conjectures
- David Andriot (LAPTh)
2:40 PM - 3:00 PM
Room: Amphithéâtre Hermite
3:00 PM Sensing quantum nature of primordial gravitational waves using quantized electromagnetic field - Fateme Shojaei Arani (IRAP)
Sensing quantum nature of primordial gravitational waves using quantized electromagnetic field
- Fateme Shojaei Arani (IRAP)
3:00 PM - 3:20 PM
Room: Amphithéâtre Hermite In this presentation, I would like to talk about the possibility of GW observatories such as LISA, to detect quantum nature of relic gravitational waves, produced and amplified during inflationary era.
3:20 PM What to do with structure at the horizon? - Iosif Bena
What to do with structure at the horizon?
- Iosif Bena
3:20 PM - 3:40 PM
Room: Amphithéâtre Hermite
3:40 PM Coffee break
Coffee break
3:40 PM - 4:10 PM
Room: Amphithéâtre Hermite
4:10 PM Leptogenesis - Stéphane Lavignac
Leptogenesis
- Stéphane Lavignac
4:10 PM - 4:40 PM
Room: Amphithéâtre Hermite
4:40 PM The H0 Olympics - Guillermo Franco Abellan (LUPM)
The H0 Olympics
- Guillermo Franco Abellan (LUPM)
4:40 PM - 5:00 PM
Room: Amphithéâtre Hermite
5:00 PM Early dark energy models - Vivian Poulin (LUPM)
Early dark energy models
- Vivian Poulin (LUPM)
5:00 PM - 5:20 PM
Room: Amphithéâtre Hermite
5:20 PM General discussion
General discussion
5:20 PM - 6:10 PM
Room: Amphithéâtre Hermite
Wednesday, December 15, 2021
9:00 AM Tensions in $\Lambda$CDM: the amplitude of matter fluctuations - Alain Blanchard (IRAP)
Tensions in $\Lambda$CDM: the amplitude of matter fluctuations
- Alain Blanchard (IRAP)
9:00 AM - 9:30 AM
Room: Amphithéâtre Hermite
9:30 AM Cosmological selection of the weak scale - Raffaele Tito D'Agnolo (IPHT)
Cosmological selection of the weak scale
- Raffaele Tito D'Agnolo (IPHT)
9:30 AM - 10:00 AM
Room: Amphithéâtre Hermite
10:00 AM Dark matter bound states - Kallia Petraki
Dark matter bound states
- Kallia Petraki
10:00 AM - 10:20 AM
Room: Amphithéâtre Hermite
10:20 AM Coffee break
Coffee break
10:20 AM - 10:50 AM
Room: Amphithéâtre Hermite
10:50 AM Out-of-equilibrium dark matter production - Mathias Pierre (DESY)
Out-of-equilibrium dark matter production
- Mathias Pierre (DESY)
10:50 AM - 11:10 AM
Room: Amphithéâtre Hermite
11:10 AM Dark matter subhalos - Gaétan Facchinetti (ULB)
Dark matter subhalos
- Gaétan Facchinetti (ULB)
11:10 AM - 11:30 AM
Room: Amphithéâtre Hermite
11:30 AM Neutron stars as dark matter detectors - Aniket Joglekar (LAPTh)
Neutron stars as dark matter detectors
- Aniket Joglekar (LAPTh)
11:30 AM - 11:50 AM
Room: Amphithéâtre Hermite
11:50 AM Capture of primordial black holes by neutron stars - Yoann Génolini (LAPTh)
Capture of primordial black holes by neutron stars
- Yoann Génolini (LAPTh)
11:50 AM - 12:10 PM
Room: Amphithéâtre Hermite
12:10 PM Lunch
Lunch
12:10 PM - 2:00 PM
Room: Amphithéâtre Hermite
2:00 PM Challenging the cold dark matter paradigm - Stéphane Ilic (LERMA/APC/IJCLab)
Challenging the cold dark matter paradigm
- Stéphane Ilic (LERMA/APC/IJCLab)
2:00 PM - 2:20 PM
Room: Amphithéâtre Hermite
2:20 PM Dwarf satellite galaxies in the MW after Gaia EDR3 - François Hammer (GEPI)
Dwarf satellite galaxies in the MW after Gaia EDR3
- François Hammer (GEPI)
2:20 PM - 2:40 PM
Room: Amphithéâtre Hermite
2:40 PM Beyond Poisson equation in N-body simulation - Clément Stahl (ObAS)
Beyond Poisson equation in N-body simulation
- Clément Stahl (ObAS)
2:40 PM - 3:00 PM
Room: Amphithéâtre Hermite
3:00 PM Does antimatter fall like matter: the GBAR experiment - Olivier Rousselle (LKB)
Does antimatter fall like matter: the GBAR experiment
- Olivier Rousselle (LKB)
3:00 PM - 3:20 PM
Room: Amphithéâtre Hermite
3:20 PM End/Farewell
End/Farewell
3:20 PM - 3:30 PM
Room: Amphithéâtre Hermite

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