Lecture

Small Instantons and Axion Mass

Description

This lecture by the instructor explores the concept of small instantons and their potential contribution to the axion mass. The presentation covers the origin of the Strong CP problem, instanton solutions, and their impact on the path integral. It delves into the holographic interpretation, fermion zero-modes, and the role of extra dimensions in enhancing UV contributions. The discussion also includes the axion solution to the Strong CP problem and the implications of higher-dimensional operators.

Official source

https://mediaspace.epfl.ch/media/0_2toessc7

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