Physics Seminar
Date: Wednesday, 26 February 2025
Time: 11.45 AM
Venue: Lecture Hall 5
Lectures on the exact renormalization group (ERG), part 1
Hidenori Sonoda
Kobe University, Kobe, Hyōgo, Japan.
26-02-25

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Abstract

The exact renormalization group is a way to formulate quantum field theory in terms of a Wilson action with a UV cutoff. Taking the cutoff to zero, we obtain the effective action. Wilson actions are often invoked to appeal to our intuituion, but not well defined. Here I would like to show you how to construct them in terms of a well defined functional differential equation.

Part 2: Partition functions at finite temperatures

Part 3: Large N approximation for the linear sigma model in D=4

Date and time of Part 2 and Part 3 will be announced later.