Missions

The objective of this position is to develop a robust and efficient framework integrating a wide range of neutrino and dark matter models, and aiming to evaluate their effects on large-scale structure statistics (LSS), as measured by the power spectrum and bispectrum of galaxies or intensity maps. The project focuses on spectroscopic surveys of galaxies — in particular the analysis of data from ESA's Euclid mission — as well as intensity mapping at 21 cm, including observations from the SKA Observatory (SKAO).

The LAPTh (CNRS/USMB) invites interest in a postdoctoral research position in theoretical cosmology, focusing on constraining dark matter and neutrino models from large-scale structural observations.

Activités

The postdoc activities will be to generalize existing analytical methods — in particular the Effective Field Theory of Large-Scale Structure (EFTofLSS) — to include the effects of massive neutrinos and non-standard dark matter, to validate theoretical predictions using simulated datasets, to predict the expected constraints from Euclid and SKAO, and ultimately to analyze Euclid's spectroscopic sample of galaxies in its second data release.

Compétences

We are looking for a researcher with proven experience in perturbative large-scale structure modeling (LSS), in particular biased dark matter tracers, in simulated dataset analysis, as well as strong programming skills in Python and C. Familiarity with the analysis of data from redshift galaxy surveys or intensity mapping at 21 cm is an asset. Beyond technical excellence, we are looking for a collaborative scientist committed to reproducible research and mentoring students as part of a distributed team.

Contexte de travail

The LAPTh is a joint research unit (UMR) of the CNRS and the Université Savoie Mont Blanc (USMB). Its scientific activities cover cosmology and astroparticle physics, particle physics, and mathematical physics. The cosmology and astroparticle team (https://astrocosmolapth.com) conducts research on large-scale cosmic structure, microwave and infrared cosmic microwave background radiation, cross-correlations between cosmological datasets, early universe physics, cosmic ray propagation and dark matter, gamma-ray bursts, and neutrino astrophysical probes.

This position is funded by DarkES, a joint ANR–DFG research project supported by the French and German national research funding agencies, co-directed by Dr. Azadeh Moradinezhad (LAPTh) and Prof. Julien Lesgourgues (RWTH Aachen University).

The CNRS, your employer, offers a range of human resources and social welfare services, including the following benefits:
- partial reimbursement of public transport passes
- cultural and leisure activities through the Social Action and Mutual Support Committee (CAES)
- 38.5 hours of full-time work per week
- teleworking 2 days per week (subject to conditions)
- 45 days of annual leave, including RTT (reduced working time), for full-time employees.

Contraintes et risques

N/A