19/07/2016, 15:10 — 15:50 — Anfiteatro Ea1, Torre Norte (Electricidade)
Tin Sulejmanpasic, North Carolina State University

Semi-Classics, Complexified Path Integrals and Lefshetz Thimbles

I will discuss semi-classics in quantum field theory, and argue that the notion of semi-classics requires the complexification of paths in the path integral. I will further argue that complex saddles which are at occasions singular and multi-valued may contribute to the path integral.

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R-sulejmanpasic.pdf