University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Friday, March 23rd 2018
Speaker: Gokce Basar (U. Illinois, Chicago)
Subject: Going with the flow: a solution to the sign problem

I will explore the generalization of the Feynman path integral in quantum field theory to complexified fields, and explain how it can be utilized to tackle the famous "sign problem". The sign problem prevents first principle studies of real-time dynamics and finite density systems via lattice field theory and appears in many different areas in physics. I will discuss both conceptual and computational aspects of this idea and give examples of several interacting quantum field theories where it successfully solves the sign problem.

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