Source: /cirosantilli/advanced-quantum-field-theory-lecture-by-tobias-osborne-2017/lecture-2

= Lecture 2

https://www.youtube.com/watch?v=hapYr6rX4JM&list=PLDfPUNusx1ErSu1JDVV1KKGQkJQCkzL9u&index=2

Gaussian path integrals.