When:
Friday, October 18, 2019
4:00 PM - 5:00 PM CT
Where: Technological Institute, L211, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students
Contact:
Yassaman
(847) 491-7650
Group: Physics and Astronomy Colloquia
Category: Academic
Cosmology is famously an observational rather than an experimental science. No experimentalists were present in the early universe, and the experiment of the birth and subsequent evolution of the universe cannot be repeated. Instead, we can only measure the spatial correlations between cosmological structures at late times. A central challenge of modern cosmology is to construct a consistent history of the universe that explains these correlations. In this colloquium, I will describe a new approach to determine cosmological correlations from consistency conditions alone, following a perspective familiar from the study of scattering amplitudes. I will also discuss more generally how recent breakthroughs in the field of scattering amplitudes could lead to new insights into the structure of cosmological correlations.
Seminar Speaker: Daniel Baumann, University of Amsterdam
Host: Carrasco
Keywords: Physics, Astronomy, Seminar, Colloquium