Instanton Physics (A Short Course by Dr. Pervez Hoodbhoy) - Lecture: 04 

The Black Hole presents a set of 8-10 lectures by Dr. Pervez Hoodbhoy that will introduce instanton methods in quantum mechanics and quantum field theory. Applications to cosmology and condensed matter physics will be discussed. Participants should be familiar with quantum mechanics at the graduate level and with beginning level field theory.
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Textbook: The Theory and Applications of Instanton Calculations by Manu Paranjape, Cambridge University Press, 2022.
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Also, you can download the lecture slides as a PDF file from here:
theblackhole.p...
theblackhole.p...
Happy learning, and stay tuned for next lectures!