The first lecture covers the motivation behind developing quantum field theory, some of the concepts needed to understand it, such as Lorentz invariance and the four vectors. Next, I introduce the Klein-Gordon equation and explain its problems
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My name is Nick Heumann, I am a recently graduated physicist. I love teaching physics, so I decided to try YouTube. English is not my native language, but I hope you can understand me well enough regardless.
▬ Content of this video ▬▬▬▬▬▬▬▬▬▬
00:00 Concepts you need to understand
7:20 p.m. Derivation of the Klein-Gordon equation
25:40 Find the energy values of the KG equation
34:48 Find the probability current and density for KG
59:25 Please support me on my Patreon!

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