Présidents de session
Contributions: Planck constraints on the tensor-to-scalar ratio
- Matthieu Tristram (IJClab, CNRS, France)
Contributions
- Il n'a pas de président de session pour ce bloc
Contributions: Contributions 3
- Il n'a pas de président de session pour ce bloc
Contributions: Contributions TBD
- Il n'a pas de président de session pour ce bloc
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Matthieu Tristram (IJClab, CNRS, France)13/10/2021 11:00Contribué
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Andrei Lazanu (École Normale Supérieure)13/10/2021 15:10Contribué
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Gabriel Chardin (CSNSM Orsay)13/10/2021 15:30Contribué
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Calum Murray (LPSC)13/10/2021 15:50Contribué
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Alain Blanchard (IRAP , OMP)13/10/2021 16:10Contribué
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Constantin Payerne (LPSC (IN2P3))13/10/2021 17:40Contribué
Constraining the mass-observable relations is a key ingredient for cluster cosmology. In particular, for optical surveys such as the Rubin LSST, the cluster abundance relies on the determination of the mass-richness relation. In that context, weak gravitational lensing by galaxy clusters can be used as a powerful tool to estimate cluster masses. We use the cluster-galaxy weak lensing in the...
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Philippe Brax (IPHT Saclay)14/10/2021 12:00Contribué
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Frederic Henry-Couannier14/10/2021 12:15Contribué
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federico piazza (CPT, Marseille)Contribué
Quantum gravitational effects are usually associated with the Planck scale but they could also become important at low energy if the wavefunction of the metric field fails to be peaked around a classical configuration.
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I try to understand such deviations from classicality within canonical quantum gravity by introducing a "fluid of observers" in the low energy theory and defining a distance...