Рет қаралды 6,329
It is a critical prerequisite of QED to understand how the laws of electromagnetism are encoded in tensor form. In this Lesson we build the 4-potential and then create the electromagnetic field tensor. Then we develop the 4-current and then combine everything into an arguably more elegant and versatile form of Maxwell's Equations.
Our next lessons will be a supplemental diversion into yet another formulation of Maxwell's Equations, this time using differential geometry and the language of differential forms.
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