In this video I will summarize what we learned about needing quantum field theory and we will begin working with the klein gordon field theory. We will minimize the action to arrive at the Euler Lagrange equations that will allow us to find the corresponding Lagrangian density that we will use in future videos to quantize the field!

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My name is Nick Heumann, I am a recently graduated physicist. I love to teach physics, so I decided to give YouTube a try. English is not my first language, but I hope that you can understand me well enough regardless.
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