About
Surveys of the Large Scale Structure are becoming increasingly detailed. A primary theoretical tool for analyzing this data and constraining cosmological models is the Effective Field Theory (EFT) of Large Scale Structure. In this presentation, I will describe an effort to calculate loop corrections to cosmological correlators within the EFT of LSS. I will discuss how loop integrals in cosmology can be mapped to conventional loop integrals in QFT with massive propagators. Within this framework, I will describe the efficient "analytical" computation of all one-loop correlators using powerful and well established QFT methods. Subsequently, I will discuss the introduction of numerical methods for computing multi-loop correlators. Finally, I will present the initial (preliminary) results for the two-loop corrections to the power spectrum..
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The talk
Credits and licence
- Institution
- CERN
- Department
- Conferences, Workshops & Schools
- Speaker
- Charalampos Anastasiou
- Year
- 2023
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed