Northwestern Events Calendar

Oct
18
2019

Colloquium: Daniel Baumann: Amplitudes Meet Cosmology

When: Friday, October 18, 2019
4:00 PM - 5:00 PM  

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

Description:

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

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