TASI Lectures on the Strong CP Problem and Axions
2019 July 22
These TASI lectures where given in 2018 and provide an introduction to the Strong CP problem and the axion. I start by introducing the Strong CP problem from both a classical and a quantum mechanical perspective, calculating the neutron eDM and discussing the $\theta$ vacua. Next, I review the various solutions and discuss the active areas of axion model building. Finally, I summarize various experiments proposed to look for these solutions.