About
I will describe how methods largely developed to tackle problems in QCD are extremely useful to understand the gravitational problem of the initial conditions. More specifically, I will how to obtain differential equations (in terms of boundary momenta) for tree-level cosmological correlators in a toy model. The differential equations follow a set of self consistent rules that can be explained autonomously, regardless of the ``bulk time integral" picture used to derive them in first place. This "kinematic flow," besides providing a practically useful way of computing the correlators, suggests that there is an alternative description of cosmology in which time evolution is an output, rather than wired-in from the get-go..
0:00:00 Slide 1
0:01:41 Slide 2
0:03:49 Slide 3
0:05:01 Slide 4
0:06:36 Slide 5
0:08:25 Slide 6
0:09:41 Slide 7
0:11:42 Slide 8
0:12:53 Slide 9
0:14:38 Slide 10
0:15:52 Slide 11
The talk
Credits and licence
- Institution
- CERN
- Department
- Conferences, Workshops & Schools
- Speaker
- Guilherme Pimentel
- Year
- 2023
- Language
- English
- Subjects
- Mathematics
- 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 Tweens profiles and older, judged from what the source says about it. How courses are placed