When:
Friday, May 19, 2023
11:00 AM - 12:00 PM CT
Where: Technological Institute, F210, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Post Docs/Docs - Graduate Students
Contact:
Group: Physics and Astronomy Special Events and Invited Talks
Category: Academic
What is the best way to extract information from a finite amount of perturbative information? This is a common problem in theoretical physics. We may only be able to compute a (small) finite number of coefficients of an expansion of a function about some special parameter point, and we wish to learn about the behaviour near another point (possibly very distant). I will discuss recent work with Ovidiu Costin using resurgence ideas to address the mathematical question of optimal and near-optimal methods of extrapolation and analytic continuation, and I will illustrate with several applications in quantum field theory.
Gerald V. Dunne, Professor, University of Connecticut
Host: JJ Carrasco